@inbook{401366,
title = {7. O homomorfn\'\i m zobrazen\'\i\ grupoid\r u},
booktitle = {\'Uvod do teorie grup},
series = {GDML\_Books},
publisher = {Kr\'alovsk\'a \v cesk\'a spole\v cnost nauk},
address = {Praha},
year = {1944},
pages = {33-36},
url = {http://dml.mathdoc.fr/item/401366}
}
(éd.). 7. O homomorfním zobrazení grupoidů, dans Úvod do teorie grup, GDML_Books, (1944), pp. 33-36. http://gdmltest.u-ga.fr/item/401366/