@article{bwmeta1.element.bwnjournal-article-aav23i3p257bwm, author = {Bovey, J.}, title = {On the congruence $a\_1(x\_1)^k + ... + a\_s(x\_s)^k = N(mod p^n)$ }, journal = {Acta Arithmetica}, volume = {22}, year = {1973}, pages = {257-269}, zbl = {0261.10003}, language = {en}, url = {http://dml.mathdoc.fr/item/bwmeta1.element.bwnjournal-article-aav23i3p257bwm} }
Bovey, J. On the congruence $a_1(x_1)^k + ... + a_s(x_s)^k = N(mod p^n)$ . Acta Arithmetica, Tome 22 (1973) pp. 257-269. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-aav23i3p257bwm/