Voir la notice de l'article provenant de la source Novi sad journal of mathematics website
@article{NSJOM_2003_33_2a_5, author = {F. Luca}, title = {Positive integers n|aa(n) -1}, journal = {Novi Sad Journal of Mathematics}, pages = {49-66}, publisher = {mathdoc}, volume = {33}, number = {2}, year = {2003}, url = {http://geodesic.mathdoc.fr/item/NSJOM_2003_33_2a_5/} }
F. Luca. Positive integers n|aa(n) -1. Novi Sad Journal of Mathematics, Tome 33 (2003) no. 2. http://geodesic.mathdoc.fr/item/NSJOM_2003_33_2a_5/