@article{1102991987, author = {Long, Calvin T.}, title = {Addition theorems for sets of integers.}, journal = {Pacific J. Math.}, volume = {23}, number = {3}, year = {1967}, pages = { 107-112}, language = {en}, url = {http://dml.mathdoc.fr/item/1102991987} }
Long, Calvin T. Addition theorems for sets of integers.. Pacific J. Math., Tome 23 (1967) no. 3, pp. 107-112. http://gdmltest.u-ga.fr/item/1102991987/