Journal articles
Weighted gcd-sum functions
Tóth, L. Weighted gcd-sum functions. Journal of Integer Sequences [Internet]. 2011;14:1-10. Available from: http://www.cs.uwaterloo.ca/journals/JIS/VOL14/Toth/toth9.pdf
external links and characteristics of the publication:
BOKU Autors
Laszlo Toth
Dr. Laszlo Toth
www.cs.uwaterloo.ca