@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/