Matthias Steiger
Dipl.-Ing. Dr. Matthias Steiger
Status left BOKU
Career
- 2014 Senior Scientist ACIB GmbH
- 2014 - 2014 PostDoc visit at University Leiden, Netherlands
- 2010 - 2014 PostDoc Researcher, ACIB GmbH
- 2007 - 2010 PhD Studies, TU Vienna
Projects
0 Projects found.
Publications
Knowledge Transfer to Society
Media
Lectures
(2022) Increasing the carbon efficiency of citric acid production
Autoren: Vásquez Castro, E; Ata Akyol, Ö; Sauer, M; Steiger, MG; Mattanovich, D
36th International Specialised Symposium on Yeasts ISSY 2022
(2022) Increasing the carbon efficiency of citric acid production
Autoren: Vásquez Castro, E; Ata, Ö; Sauer, M; Steiger, MG; Mattanovich, D
European Summit of Industrial Biotechnology ESIB & Pichia & 11th International Conference on Fiber & Polymer Biotechnology IFPB 2022
(2020) A synthetic Calvin cycle enables autotrophic growth in yeast
Autoren: Gassler, T; Egermeier, M; Gasser, B; Sauer, M; Steiger, MG; Mattanovich, D
5th Applied Synthetic Biology Conference in Europe 2020
(2019) A synthetic yeast for efficient assimilation of carbon dioxide
Autoren: Gassler, T; Gasser, B; Sauer, M; Steiger, M; Mattanovich D
47th Annual Conference on Yeasts 2019
(2019) Engineering of the citrate exporter protein enables high citric acid production in Aspergillus niger
Autoren: Rassinger, A; Steiger, M; Mattanovich, D; Sauer, M
30th Fungal Genetics Conference 2019
(2019) A synthetic Calvin cycle enables autotrophic growth in the yeast Pichia pastoris
Autoren: Gassler, T; Gasser, B; Sauer, M; Steiger, M; Mattanovich, D
RPP10 2019
(2019) CarboFeed: A biotech based platformtechnology for CO2utilization in yeast
Autoren: Gassler, T; Egermeier, M; Steiger, MG; Mattanovich, D
EFIB 2019
(2019) Engineering of the citrate exporter protein enables high citric acid production in Aspergillus niger
Autoren: Ellena, V; Arcalis, E; Sauer, M; Steiger, MG
30th Fungal Genetics Conference 2019
(2019) Synthetic biology for efficient assimilation of carbon dioxide
Autoren: Gassler T; Gasser B; Sauer M; Steiger MG; Mattanovich D
14th Asian Congress on Biotechnology ACB 2019
(2019) A synthetic yeast for efficient assimilation of carbon dioxide
Autoren: Gassler T; Gasser B; Sauer M; Steiger MG; Mattanovich D
46th Annual Conference on Yeasts 2019
(2018) Novel microfluidic and analytical approaches for screening engineered strains: downscaling of S. cerevisae cultivations for lactic acid production
Autoren: Totaro, D; Rothbauer, M, Chen, Y-Y; Sauer, M; Steiger M; Wang HY; Ertl, P; Mattanovich D
10th ÖGMBT Annual Meeting & Biophysics Austria Annual Meeting 2018
(2018) Phospholipid vesicles to determine the transport functionality of mitochondrial carrier proteins
Autoren: Jeschek, D; Steiger, M.G.; Mattanovich, D; Sauer, M
10th ÖGMBT Annual Meeting & Biophysics Austria Annual Meeting 2018
(2018) Identification of a citrate exporter protein CexA for citric acid production in Aspergillus niger
Autoren: Rassinger, A; Mattanovich, D; Sauer, M; Steiger, M;
10th ÖGMBT Annual Meeting & Biophysics Austria Annual Meeting 2018
(2018) Switching the metabolism of Pichia pastoris to efficiently assimilate CO2
Autoren: Gaßler, T; Gasser, B; Sauer, M; Steiger, M; Mattanovich, D;
10th ÖGMBT Annual Meeting & Biophysics Austria Annual Meeting 2018
(2018) Robert H. Bischof1, Alexander Beinhauer1, Benjamin Metz1, Claudia Koger1, Matthias G. Steiger2,3, Christian Gamauf4, Georg Schirrmacher4, Christian P. Kubicek1,5, Bernhard Seiboth1,5
Autoren: Wanka, F; Bischof, RH; Beinhauer, A; Metz, B; Koger, C; Steiger MG; Gamauf, Ch; Schirrmacher, G; Kubicek, Ch; Seiboth, B
14th European Conference on Fungal Genetics ECFG14 2018
(2018) Identification of the citrate exporter CexAfor citric acid production in Aspergillus niger
Autoren: Steiger, M; Rassinger, A; Sauer, M; Mattanovich, D
36th SMYTE 2018 - Small Meeting on Yeast Transport and Energetics
(2018) A synthetic yeast for efficient assimilation of carbon dioxide
Autoren: Gassler T; Gasser B; Sauer M; Steiger M; Mattanovich D
Advances in Microbiology and Biotechnology 2018
(2018) Phospholipid vesicles to determine the transport functionality of mitochondrial carrier proteins
Autoren: Jeschek, D; Steiger, MG; Mattanovich, D; Sauer, M;
European Congress on Biotechnology ECB 2018
(2018) A Synthetic Yeast for Efficient Assimilation of Carbon Dioxide.
Autoren: Gaßler, Thomas; Gasser, Brigitte; Sauer, Michael; Matthias G. Steiger; Mattanovich, D
12th Metabolic Engineering 2018
(2018) Towards a sexual cycle in Aspergillus niger
Autoren: Ellena, V; Sauer, M; Steiger, M
10th ÖGMBT Annual Meeting & Biophysics Austria Annual Meeting 2018
(2018) Towards a sexual cycle in Aspergillus niger
Autoren: Ellena, V; Sauer, M; Steiger, M
14th European Conference on Fungal Genetics ECFG14 2018
(2018) A single transcription factor controls the Crabtree effect in Komagataella phaffii
Autoren: Ata Ö; Rebnegger C; Tatto NE; Valli M; Mairinger T; Hann S; Steiger MG; Calik P; Mattanovich D
34th International Specialised Symposium on Yeasts
(2018) A single transcriotpion factor controls the crabtree effect in Komagataella phaffii
Autoren: Ata O; Rebnegger C; Tatto N; Valli M; Mairinger T; Hann S; Steiger MG; Çalık P; Mattanovich D
ISSY34 2018
(2018) A synthetic yeast for efficient assimilation of carbon dioxid
Autoren: Gaßler, T; Gasser, B; Sauer, M; Steiger MG; Mattanovich, D
4th Applied Synthetic Biology in Europe 2018
(2018) Industrial yeast strain efficiently assimilating carbon dioxide
Autoren: Steiger, M; Gassler, T; Sauer, M; Gasser, B; Mattanovich, D
10th Carbon Dioxide Utilisation Summit
(2018) Enzyme scaffolding for metabolic engineering endeavors
Autoren: Albrecht, B; Steiger MG, Mattanovich, D; Sauer, M;
European Congress on Biotechnology ECB 2018
(2018) A synthetic yeast for efficient assimilation of carbon dioxide
Autoren: Gassler T; Gasser B; Sauer M; Steiger MG; Mattanovich D
Apllied Synthetic Biology in Europe 2018
(2017) 13C basierte metabolische Flussanalyse: Ermittlung der Messunsicherheit
Autoren: Mairinger, T., Wegscheider, W., Pena Navarro, D., Steiger, M., Koellensperger, G., Zanghellini, J. and Hann, S.
ANAKON 2017
(2017) Sexual development in Aspergillus niger
Autoren: Ellena, V; Sauer, M; Steiger M;
European Summit of Industrial Biotechnology ESIB 2017
(2017) Fine-tuning gene expression: pantothenic acid inducible promoters in Trichoderma reesei
Autoren: Bischof, RH; Wanka, F; Beinhauer, A; Metz, B; Koger, C; Steiger, M; Gamauf, C; Schirrmacher, G; Kubicek, C; Seiboth, B;
European Summit of Industrial Biotechnology ESIB 2017
(2017) Enzyme-Scaffolding for metabolic engineering endeavors
Autoren: Albrecht, B; Steiger, M; Mattanovich, D; Sauer, M;
Designer Biology Symposium 2017 - From Proteins and Cells to Scaffolds & Materials
(2017) An efficient tool for metabolic pathway construction and gene integration for Aspergillus niger.
Autoren: Sarkari, P; Marx, H; Blumhoff, M; Mattanovich, D; Sauer, M; Steiger, M;
European Summit of Industrial Biotechnology ESIB 2017
(2017) Impact of glutathione metabolism on zinc homeostasis in Saccharomyces cerevisiae
Autoren: Steiger, M; Patzschke, A; Holz, C; Lang, C; Causon, T; Hann, S; Mattanovich, D; Sauer, M;
7th Congress of European Microbiologists - FEMS 2017
(2017) Enlarging the synthetic biology toolbox for Pichia pastoris: Golden Gate cloning and CRISPR/Cas9
Autoren: Gaßler, T; Prielhofer, R ; Heistinger, L; Zahrl, R; Zehetbauer, F; Steiger, M; Sauer, M; Gasser, B; Mattanovich, D;
Synthetic Biology Engineering Evolution Design SEED 2017
(2017) Enlarging the Synthetic Biology Toolbox for Pichia Pastoris: Golden Gate Cloning and CRISPR/Cas9
Autoren: Gaßler, T; Prielhofer, R; Heistinger, L; Zahrl, R; Zehetbauer, F; Steiger, M; Sauer, M; Gasser, B; Mattanovich, D;
Synthetic Biology Engineering Evolution Design SEED 2017
(2017) Microfluidic Platform for Downscaling Fermentation and for Screening Engineered Strains
Autoren: Totaro, D; Mattanovich, D; Ertl, P; Sauer, M; Steiger, M;
European Summit of Industrial Biotechnology ESIB 2017
(2017) Synthetic phospholipid systems to understand molecular transport processes
Autoren: Jeschek, D; Steiger, M; Mattanovich, D; Sauer, M;
European Summit of Industrial Biotechnology ESIB 2017
(2017) Impact of glutathione metabolism on zinc homeostasis in Saccharomyces cerevisiae
Autoren: Steiger, M; Patzschke, A; Holz, C; Lang, C; Causon, T; Hann, S; Mattanovich, D; Sauer, M;
European Summit of Industrial Biotechnology ESIB 2017
(2017) Synthetic phospholipid systems to understand molecular transport processes.
Autoren: Jeschek, D; Steiger, M; Mattanovich, D; Sauer, M;
Designer Biology Symposium 2017 - From Proteins and Cells to Scaffolds & Materials
(2017) Enzyme scaffolding for metabolic engineering endeavors
Autoren: Albrecht, B; Steiger, M, Mattanovich, D; Sauer, M;
European Summit of Industrial Biotechnology ESIB 2017
(2016) Methanol metabolism revisited: The xylulose-monophosphate cycle of methanol assimilation utilizes a duplicated methanol inducible enzyme set and is entirely localized to peroxisomes
Autoren: Rußmayer, H; Buchetics, M; Gruber, C; Valli, M; Grillitsch, K; Modarres, G; Drexler, H; Steiger, M; Daum, G; Graf, A; Altmann, F; Hann, S; Sauer, M; Mattanovich, D; Gasser, B;
Pichia 2016
(2016) Matching the demand of protein production by metabolic engineering of the central metabolism: lessons learned from cofactor and amino acid metabolism in yeasts
Autoren: Russmayer, H; Nocon, J.; Hohlweg, J; Steiger, M; Sauer, M; Gasser, B; Mattanovich, D;
11th Metabolic Engineering 2016
(2016) How to characterize and exploit intracellular transport processes by metabolic engineering,
Autoren: Steiger, M; Punt, P; Ram, A; Mattanovich, D; Sauer, M;
11th Metabolic Engineering 2016
(2016) Systems-level organization of yeast methylotrophic lifestyle: The xylulose-monophosphate cycle of methanol assimilation utilizes a duplicated methanol inducible enzyme set and is entirely localized to peroxisomes
Autoren: Rußmayer, H; Buchetics, M; Gruber, C; Valli, M; Grillitsch, K; Modarres, G; Drexler, H; Steiger, M; Daum, G; Graf, A; Altmann, F; Hann, S; Sauer, M; Mattanovich, D; Gasser, B;
PYFF6 - 6th Conference on Physiology of Yeasts and Filamentous Fungi
(2016) Enzyme-scaffolding for metabolic engineering endeavors
Autoren: Albrecht, B; Steiger, M; Mattanovich, D; Sauer, M
ESIB 2016
(2016) Synthetic biology toolbox and application for recombinant protein production in Pichia pastoris; Golden Gate Cloning and CRISPR/Cas9
Autoren: Prielhofer, R; Barrero, J; Steuer, S; Zahrl, R; Baumann, K; Heistinger, L; Jarych, D; Zehetbauer, F; Mattanovich, M; Steiger, M; Marx, H; Sauer, M; Mattanovich, D; Gasser, B;
ESIB 2016
(2016) Customizing the amino acid metabolism of Pichia pastoris for recombinant protein production
Autoren: Rußmayer, H; Buchetics, M; Hohlweg, J; Neubauer, S; Klavins, K; Steiger, M; Graf, A; Köllensperger, G; Hann, S; Sauer, M; Gasser, B; Mattanovich, D;
1st ACIB Workshop on Analytical Chemistry 2016
(2016) High-efficient integration system for metabolic engineering in Aspergillus niger
Autoren: Steiger, M; Sarkari, P; Kiesswetter, U; Sauer, M; Mattanovich, D;
ESIB – European Summit of Industrial Biotechnology
(2016) Engineering Pichia pastoris towards alternative carbon sources
Autoren: Gaßler, T; Steiger, M; Gasser, B; Sauer, M; Mattanovich, D
ESIB 2016
(2016) Matching the demand of protein production by metabolic engineering of the central metabolism: lessons learned from cofactor and amino acid metabolism in yeasts
Autoren: Mattanovich, D; Russmayer, H; Nocon, J.; Hohlweg, J; Steiger, M; Sauer, M; Gasser, B;
11th Metabolic Engineering 2016
(2016) Metabolic pathway engineering in Aspergillus niger
Autoren: Sarkari, P; Steiger, M; Kiesswetter, U; Sauer, M; Mattanovich, D;
ESIB – European Summit of Industrial Biotechnology
(2016) Thermodynamics and High Pressure Biotechnology
Autoren: Steiger, M; Mattanovich, D; Sauer, M;
Workshop on ABE production and CO2/H2 fermentation
(2016) Synthetic biology toolbox and application for recombinant protein production in Pichia pastoris: Golden Gate cloning and CRISPR/Cas9
Autoren: Prielhofer, R; Barrero, J; Steuer, S; Zahrl, R; Baumann, K; Heistinger, L; Jarych, D; Zehetbauer, F; Mattanovich, M; Steiger, M; Marx, H; Sauer, M; Mattanovich, D; Gasser, B;
Pichia 2016
(2016) Understanding transport processes for improved metabolic engineering approaches
Autoren: Jeschek, D; Steiger, M; Mattanovich, D; Sauer, M;
ESIB 2016
(2015) Molecular mass spectormetry based determination of isotopologue and isotopomer fractions for 13C-metabolic flux analysis
Autoren: Mairinger, T., Steiger, M., Mattanovic, D., Koellensperger, G. and Hann, S.
Fritz-Feigl Symposium on Analytical Chemistry 2015
(2015) Transport proteins for itaconic acid production in Aspergillus niger.
Autoren: Steiger, M; Punt, P; Ram, AFJ; Mattanovich, D; Sauer, M
28th Fungal Genetics Conference 2015
(2015) Accurate mass GC-QTOFMS with chemical ionization for isotopologue and tandem mass isotopomer analysis of primary metabolites in biological samples
Autoren: Mairinger, T., Nocon, J., Steiger, M., Mattanovich, D., Koellensperger, G. and Hann, S.
11th International Conference of the Metabolomics Society 2015
(2015) The xylulose-monophosphate cycle of methanol assimilation utilizes a duplicated methanol inducible enzyme set and is entirely localized to peroxisomes
Autoren: Gasser, B; Russmayer, H; Buchetics, M; Gruber, C; Valli, M; Grillitsch, K; Modarres, G; Drexler, H; Steiger, M; Daum, G; Graf, AB; Altmann, F; Hann, S; Sauer, M; Mattanovich, D
27th International Conference on Yeast Genetics and Molecular Biology ICYGMB 2015
(2015) Understanding germination processes in Aspergillus niger with the help of flow-cytometry
Autoren: Kiesswetter, Ursula, Steiger, Matthias, Mattanovich, Diethard, Sauer, Michael
6th International Conference on Analysis of Microbial Cells at the Single Cell Level 2015
(2015) Mehtanol induced changes on the transciptome, proteome, metabolome and fluxome of Pichia pastoris
Autoren: Russmayer, Hannes, Buchetics, Markus, Graf, Alexandra, Valli, Minoska, Gruber, Clemens, Modarres, Gerda, Altmann, Friedrich, Guerrasio, Raffaelle, Klavins, Kristaps, Neubauer, Stefan, Stiefer, Matthias, Chalabi Ali Al, Krebiehl, Guido, Sonntag, Denise, Haberhauer-Troyer, Christina, Köllensperger, Gunda, Hann Stephan, Sauer, Michael, Gasser, Brigitte, Mattanovich, Diethard
8th Conference on Recombinant Protein Production RPP8 2015
(2015) Exceptional zinc localization under high glutathione accumulation in yeast strains visualized by fluorescent microscopy
Autoren: Steiger, M; Patzschke, A; Holz, Caterina; Lang, Christine; Mattanovich, D; Sauer, M
6th International Conference on Analysis of Microbial Cells at the Single Cell Level 2015
(2015) Metabolic engineering with transport proteins for itoconic acid production
Autoren: Steiger, Matthias
ACIB Science Days 2015
(2014) Metabolic engineering for sustainable chemical production
Autoren: Mattanovich, Diethard; Steiger, Mattias; Marx, Hans; Sauer, Michael
iBioT2014
(2014) Itaconic acid production in A. niger
Autoren: Steiger, Matthias
iBioT2014
(2014) Transport proteins for itaconic acid production in Aspergillus niger
Autoren: Steiger, Matthias; Punt, Peter; Ram, Arthur; Mattanovich, Diethard and Sauer, Michael
ACIB-UAB Workshop - Systems Biology for Metabolic Engineering
(2014) Flow cytometric analysis of Aspergillus niger conidia
Autoren: Kiesswetter, Ursula; Steiger, Mattias; Mattanovich, Diethard; Sauer, Michael
12th European Conference on Fungal Genetics ECFG12 2014
(2014) Methanol induced changes on the transcriptome, proteome, metabolome and fluxome of Pichia pastoris
Autoren: Rußmayer, Hannes; Buchetics, Markus; Graf, Alexandra; Valli, Minoska; Gruber, Clemens; Modarres, Gerda; Altmann, Friedrich; Guerrasio, Raffaelle; Klavins, Kristaps; Neubauer, Stefan; Steiger, Matthias; Chalabi, Ali Al; Krebiehl, Guido; Sonntag, Denise; Haberhauer-Troyer, Christina; Köllensperger, Gunda; Hann, Stephan; Sauer, Michael; Gasser, Brigitte; Mattanovich, Diethard
ACIB-UAB Workshop - Systems Biology for Metabolic Engineering
(2014) "Model based engineering of Pichia pastoris central metabolism enhances recombinant protein production"
Autoren: Hoppe, Frederik; Schillinger, Harald; Schrafvogl, Rudolf; Hutter, Melanie; Kunert, Renate; Eyer, Kurt; Maurer, Michael
5th International Conference on Biomolecular Engineering (ICBE)
(2014) Methanol induced changes on the transcriptome, proteome, metabolome and fluxome of Pichia pastoris
Autoren: Rußmayer, Hannes; Buchetics, Markus; Graf, Alexandra; Valli, Minoska; Gruber, Clemens; Modarres, Gerda; Altmann, Friedrich; Guerrasio, Raffaelle; Klavins, Kristaps; Neubauer, Stefan; Steiger, Matthias; Chalabi, Ali Al; Krebiehl, Guido; Sonntag, Denise; Haberhauer-Troyer, Christina; Köllensperger, Gunda; Hann, Steph
ACIB-UAB Workshop - Systems Biology for Metabolic Engineering
(2014) Model based engineering of Pichia pastoris central metabolism enhances recombinant protein production
Autoren: Nocon, Justyna; Steiger, Matthias; Pfeffer, Martin; Sohn, Seung Bum; Kim, Tae Yong; Maurer, Michael; Russmayer, Hannes; Pflügl, Stefan; Ask, Magnus; Haberhauer-Troyer, Christina; Ortmayr, Karin; Hann, Stephan; Köllensperger, Gunda; Gasser, Brigitte; Lee, Sang Yup; Mattanovich, Diethard
ECB16 2014
(2013) Metabolic model-based prediction of engineering targets for increased production of heterologous proteins
Autoren: Nocon, J; Pfeffer, M; Sohn, SB; Kim, TY;, Maurer, M; Rußmayer, H; Steiger, M; Haberhauer-Troyer, C; Hann, S; Köllensperger, G;, Gasser, B; Lee, SY; Mattanovich, D.
Quantitative Biology: Current concepts and tools for microbial strain and process development
(2013) Microbial production of bulk chemicals from renewable substrates
Autoren: Mattanovich, D; Marx, H.; Steiger, M; Sauer, M.
Bioalternatives Workshop
(2013) Analyzing the impact of compartmentalization on organic acid production in Aspergillus niger
Autoren: Blumhoff, M; Steiger, MG; Mattanovich, D; Sauer, M
27th Fungal Genetics Conference 2013
(2013) Flow cytometry of germinating Aspergillus niger spores
Autoren: Kiesswetter, U; Steiger, M; Mattanovich, D; Sauer, M.
5th Conference on Physiology of Yeast and Filamentous Fungi PYFF5 2013
(2012) Uncertainty analysis of isotopomer mass distribution: a quality control tool in Metabolomics and Fluxomics.
Autoren: Guerrasio, R., Haberhauer-Troyer, C., Steiger, M., Sauer, M., Mattanovich, D., Köllensperger, G. and Hann, S.
60th ASMS Conference on Mass Spectrometry and Allied Topics 2012
(2012) Evaluation of recoveries of cell extraction and overall sample preparation using a U13C cell extract
Autoren: Neubauer, S., Klavins, K., Haberhauer-Troyer, C., Steiger, M.G., Gasser, B., Sauer, M., Mattanovich, D., Hann, S. and Köllensperger, G.
60th ASMS Conference on Mass Spectrometry and Allied Topics 2012
(2012) Glutathione accumulation in Saccharomyces cerevisiae under anaerobic cultivation conditions
Autoren: Steiger, MG; Patzschke, A; Mattanovich, D; Sauer, M
Yeast Genetics and Molecular Biology Meeting 2012
(2011) Towards characterization and optimization of an industrial, citric acid overproducing Aspergillus niger strain
Autoren: Steiger, MG; Tatto, NE; Graf, AB; MAttanovich, D; Sauer, M
1st Conference on Constraint-based Reconstruction and Analysis 2011
(2011) LC-MS/MS Analysis of Metabolomics in Yeast: Evaluation of Sampling, Extraction and Storage Procedures
Autoren: Klavins, K., Neubauer, S., Haberhauer-Troyer, C., Guerrasio, R., Russmayer, H., Steiger, M., Sauer, M., Mattanovich, D., Hann, S. and Köllensperger, G.
7. ASAC JunganalytikerInnen Forum 2011
(2011) Metabolite analyses in the protein production host Pichia pastoris
Autoren: Rußmayer, H., Guerrasio, R., Klavins, K., Neubauer, S., Steiger, M., Haberhauer-Troyer C., Koellensperger, G., Hann, S., Sauer, M., Gasser, B., Mattanovich, D.
3rd ÖGMBT Annual Meeting 2011
(2010) A transformation system for Hypocrea (Trichoderma) that favours homologous integration and that uses reusable bi-directionally selectable markers
Autoren: M. Steiger, M. Vitikainen, K. Brunner, G. Adam, M. Saloheimo, R.L. Mach, A. Mach-Aigner
Trichoderma - Molecular mechanisms and applications of biocontrol in agriculture
Enlarging the synthetic biology toolbox for Pichia pastoris: Golden Gate cloning and CRISPR/Cas9
Autoren: Gassler, T; Prielhofer, R; Heistinger, L; Zahrl, R; Zehetbauer, F; Steiger, MG; Sauer, M; Mattanovich, D; Gasser, B;
Unraveling transport mechanisms of mitochondrial carrier proteins to develop new metabolic engineering strategies
Autoren: Jeschek, D; Steiger MG; Mattanovich, D; Sauer, M;
Synthetic biology for efficient assimilation of carbon dioxide
Autoren: Gassler T; Gasser B; Sauer M; Steiger MG; Mattanovich D