@article{1183485743, author = {Dickson, L. E.}, title = {Integral solutions of $x^2 - my^2 = zw$}, journal = {Bull. Amer. Math. Soc.}, volume = {29}, number = {10}, year = {1923}, pages = { 464-467}, language = {en}, url = {http://dml.mathdoc.fr/item/1183485743} }
Dickson, L. E. Integral solutions of $x^2 - my^2 = zw$. Bull. Amer. Math. Soc., Tome 29 (1923) no. 10, pp. 464-467. http://gdmltest.u-ga.fr/item/1183485743/