@article{AUPO_1973__13_1_a2, author = {Sedl\'a\v{c}ek, Ladislav}, title = {Zum {Problem} der inneren direkten {Produkte} von {Gruppoiden}}, journal = {Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica}, pages = {27--38}, publisher = {mathdoc}, volume = {13}, number = {1}, year = {1973}, mrnumber = {0352297}, zbl = {0292.20053}, language = {ge}, url = {http://geodesic.mathdoc.fr/item/AUPO_1973__13_1_a2/} }