Voir la notice de l'article provenant de la source Hellenic Digital Mathematics Library
@article{MR_1996__46_a5, author = {Florian Luca}, title = {On the {Sum-of-Divisors} {Function} of the {Numbers} of {Fermat} and {Ferentinou-Nicolacopoulou}}, journal = {M\ensuremath{\alpha}\ensuremath{\theta}\ensuremath{\eta}\ensuremath{\mu}\ensuremath{\alpha}\ensuremath{\tau}\ensuremath{\iota}\ensuremath{\kappa}\ensuremath{\acute\eta} E\ensuremath{\pi}\ensuremath{\iota}\ensuremath{\theta}\ensuremath{\varepsilon}\ensuremath{\acute\omega}\ensuremath{\rho}\ensuremath{\eta}\ensuremath{\sigma}\ensuremath{\eta} }, pages = {11-21}, publisher = {mathdoc}, volume = {46}, year = {1996}, language = {gr}, url = {http://geodesic.mathdoc.fr/item/MR_1996__46_a5/} }
Florian Luca. On the Sum-of-Divisors Function of the Numbers of Fermat and Ferentinou-Nicolacopoulou. Μαθηματική Επιθεώρηση , Tome 46 (1996), p. 11-21. http://geodesic.mathdoc.fr/item/MR_1996__46_a5/