@article{03588759, title = {Complete residue systems in the quadratic domain }, journal = {International Journal of Mathematics and Mathematical Sciences}, volume = {1}, year = {1978}, pages = {75-86}, doi = {10.1155/S0161171278000101}, zbl = {0378.12003}, language = {en}, url = {http://dml.mathdoc.fr/item/03588759} }
Bergum, Gerald E. Complete residue systems in the quadratic domain . International Journal of Mathematics and Mathematical Sciences, Tome 1 (1978) pp. 75-86. doi : 10.1155/S0161171278000101. http://gdmltest.u-ga.fr/item/03588759/