@article{GDZPPN002179229,
title = {On the Inversion of Even Functions of Finite Abelian Groups (mod H).},
journal = {Journal f\"ur die reine und angewandte Mathematik},
volume = {208},
year = {1961},
pages = {192-202},
zbl = {0121.03204},
url = {http://dml.mathdoc.fr/item/GDZPPN002179229}
}
Cohen, Eckford. On the Inversion of Even Functions of Finite Abelian Groups (mod H).. Journal für die reine und angewandte Mathematik, Tome 208 (1961) pp. 192-202. http://gdmltest.u-ga.fr/item/GDZPPN002179229/