@article{GDZPPN002281899, title = {Zur Theorie der Zeroringe.}, journal = {Mathematische Annalen}, volume = {121}, year = {1949}, pages = {242-246}, zbl = {0034.31001}, url = {http://dml.mathdoc.fr/item/GDZPPN002281899} }
Szele, Tibor. Zur Theorie der Zeroringe.. Mathematische Annalen, Tome 121 (1949) pp. 242-246. http://gdmltest.u-ga.fr/item/GDZPPN002281899/