@article{GDZPPN002486768,
title = {On Sums of Two Coprime k-th Powers.},
journal = {Monatshefte f\"ur Mathematik},
volume = {108},
year = {1989},
pages = {47-58},
zbl = {0678.10034},
url = {http://dml.mathdoc.fr/item/GDZPPN002486768}
}
Nowak, Werner Georg. On Sums of Two Coprime k-th Powers.. Monatshefte für Mathematik, Tome 108 (1989) pp. 47-58. http://gdmltest.u-ga.fr/item/GDZPPN002486768/