Voir la notice de l'article provenant de la source Math-Net.Ru
@article{FAA_1997_31_1_a13, author = {S. L. Tabachnikov}, title = {On {Functions} with {Zero} {Mean} over a {Finite} {Group}}, journal = {Funkcionalʹnyj analiz i ego prilo\v{z}eni\^a}, pages = {93--94}, publisher = {mathdoc}, volume = {31}, number = {1}, year = {1997}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/FAA_1997_31_1_a13/} }
S. L. Tabachnikov. On Functions with Zero Mean over a Finite Group. Funkcionalʹnyj analiz i ego priloženiâ, Tome 31 (1997) no. 1, pp. 93-94. http://geodesic.mathdoc.fr/item/FAA_1997_31_1_a13/