@article{GDZPPN002082039, title = {On the incongruence of consecutive fourth powers.}, journal = {Elemente der Mathematik}, volume = {43}, year = {1988}, pages = {145-149}, zbl = {0712.11002}, url = {http://dml.mathdoc.fr/item/GDZPPN002082039} }
Steinig, J.; Schumer, P. On the incongruence of consecutive fourth powers.. Elemente der Mathematik, Tome 43 (1988) pp. 145-149. http://gdmltest.u-ga.fr/item/GDZPPN002082039/