@article{CLTM_1964_1964_1_a6,
     author = {Cohen, Eckford},
     title = {Arithrnetical {Notes,} {VII} {Sorne} {Classes} of even {Functions} (mod r).},
     journal = {Collectanea mathematica},
     publisher = {mathdoc},
     number = {2-3},
     year = {1964},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CLTM_1964_1964_1_a6/}
}