@article{GDZPPN00125121X,
title = {Schwache Teilbarkeitshalbgruppen.},
journal = {Semigroup forum},
volume = {12},
year = {1976},
pages = {119-136},
language = {de},
url = {http://dml.mathdoc.fr/item/GDZPPN00125121X}
}
Bosbach, B. Schwache Teilbarkeitshalbgruppen.. Semigroup forum, Tome 12 (1976) pp. 119-136. http://gdmltest.u-ga.fr/item/GDZPPN00125121X/