@article{104627, author = {Old\v rich Kope\v cek}, title = {Allgemeine Kardinaloperationen}, journal = {Archivum Mathematicum}, volume = {003}, year = {1967}, pages = {35-44}, zbl = {0164.31604}, mrnumber = {0221985}, language = {de}, url = {http://dml.mathdoc.fr/item/104627} }
Kopeček, Oldřich. Allgemeine Kardinaloperationen. Archivum Mathematicum, Tome 003 (1967) pp. 35-44. http://gdmltest.u-ga.fr/item/104627/
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