@article{1077473106,
author = {Pollard, Harry},
title = {Sequences with vanishing even differences},
journal = {Duke Math. J.},
volume = {12},
number = {1},
year = {1945},
pages = { 303-304},
language = {en},
url = {http://dml.mathdoc.fr/item/1077473106}
}
Pollard, Harry. Sequences with vanishing even differences. Duke Math. J., Tome 12 (1945) no. 1, pp. 303-304. http://gdmltest.u-ga.fr/item/1077473106/