@article{JTNB_2000__12_1_87_0, author = {Javier Cilleruelo and Jorge Jim\'enez-Urroz}, title = {The hyperbola $xy = N$}, journal = {Journal de Th\'eorie des Nombres de Bordeaux}, pages = {87--92}, publisher = {Universit\'e Bordeaux I}, volume = {12}, number = {1}, year = {2000}, doi = {10.5802/jtnb.267}, zbl = {1006.11055}, mrnumber = {1827840}, language = {en}, url = {https://jtnb.centre-mersenne.org/articles/10.5802/jtnb.267/} }