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@article{JRAM_1969__235_150913, author = {Allen R. Freedman}, title = {Some generalizations in additive number theory.}, journal = {Journal f\"ur die reine und angewandte Mathematik}, pages = {1--19}, publisher = {mathdoc}, volume = {235}, year = {1969}, zbl = {0211.38301}, url = {http://geodesic.mathdoc.fr/item/JRAM_1969__235_150913/} }
Allen R. Freedman. Some generalizations in additive number theory.. Journal für die reine und angewandte Mathematik, Tome 235 (1969), pp. 1-19. http://geodesic.mathdoc.fr/item/JRAM_1969__235_150913/