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@article{JRAM_1968__232_150869, author = {Dieter Szimtenings}, title = {Relativnullen in additiven abelschen {Gruppen.}}, journal = {Journal f\"ur die reine und angewandte Mathematik}, pages = {17--34}, publisher = {mathdoc}, volume = {232}, year = {1968}, zbl = {0169.06001}, url = {http://geodesic.mathdoc.fr/item/JRAM_1968__232_150869/} }
Dieter Szimtenings. Relativnullen in additiven abelschen Gruppen.. Journal für die reine und angewandte Mathematik, Tome 232 (1968), pp. 17-34. http://geodesic.mathdoc.fr/item/JRAM_1968__232_150869/