@article{GDZPPN002090686, title = {A Generalization of Kummer's Criterion.}, journal = {Inventiones mathematicae}, volume = {20}, year = {1973}, pages = {247-254}, zbl = {0269.12005}, url = {http://dml.mathdoc.fr/item/GDZPPN002090686} }
Greenberg, Ralph. A Generalization of Kummer's Criterion.. Inventiones mathematicae, Tome 20 (1973) pp. 247-254. http://gdmltest.u-ga.fr/item/GDZPPN002090686/