@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/}
}