@article{05560453, title = {Generalized perfect numbers.}, journal = {Acta Universitatis Sapientiae. Mathematica}, volume = {1}, year = {2009}, pages = {73-82}, zbl = {1192.11003}, language = {en}, url = {http://dml.mathdoc.fr/item/05560453} }
Bege, Antal; Fogarasi, Kinga. Generalized perfect numbers.. Acta Universitatis Sapientiae. Mathematica, Tome 1 (2009) pp. 73-82. http://gdmltest.u-ga.fr/item/05560453/