Voir la notice de l'article provenant de la source Czech Digital Mathematics Library
@article{COMIM_1998__6_1_a18, author = {Louboutin, S. and Newman, M. F.}, title = {On the diophantine equation $xy+yz+zx=d$}, journal = {Communications in Mathematics}, pages = {155--158}, publisher = {mathdoc}, volume = {06}, number = {1}, year = {1998}, mrnumber = {1822526}, zbl = {1024.11015}, language = {en}, url = {http://geodesic.mathdoc.fr/item/COMIM_1998__6_1_a18/} }
Louboutin, S.; Newman, M. F. On the diophantine equation $xy+yz+zx=d$. Communications in Mathematics, Tome 06 (1998) no. 1, pp. 155-158. http://geodesic.mathdoc.fr/item/COMIM_1998__6_1_a18/