@article{CM_1980__40_1_3_0, author = {Sperber, S.}, title = {Congruence properties of the hyperkloosterman sum}, journal = {Compositio Mathematica}, pages = {3--33}, publisher = {Sijthoff et Noordhoff International Publishers}, volume = {40}, number = {1}, year = {1980}, zbl = {0444.12014}, mrnumber = {558257}, language = {en}, url = {http://www.numdam.org/item/CM_1980__40_1_3_0/} }