@article{GDZPPN002374447,
title = {The number of solutions of some congruences in two variables.},
journal = {Mathematische Zeitschrift},
volume = {37},
year = {1933},
pages = {193-209},
zbl = {0007.00501},
url = {http://dml.mathdoc.fr/item/GDZPPN002374447}
}
Mordell, L.J. The number of solutions of some congruences in two variables.. Mathematische Zeitschrift, Tome 37 (1933) pp. 193-209. http://gdmltest.u-ga.fr/item/GDZPPN002374447/