Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{PORMA_1989__46_2_115659, author = {Ribenboim, P.}, title = {Square classes of {Fibonacci} and {Lucas} numbers}, journal = {Portugaliae mathematica}, pages = {159--175}, publisher = {mathdoc}, volume = {46}, number = {2}, year = {1989}, mrnumber = {1020964}, zbl = {0687.10005}, language = {en}, url = {http://geodesic.mathdoc.fr/item/PORMA_1989__46_2_115659/} }
Ribenboim, P. Square classes of Fibonacci and Lucas numbers. Portugaliae mathematica, Tome 46 (1989) no. 2, pp. 159-175. http://geodesic.mathdoc.fr/item/PORMA_1989__46_2_115659/