Voir la notice de l'article provenant de la source Czech Digital Mathematics Library
@article{CMUC_1990__31_1_a31, author = {Dr\'apal, Ale\v{s}}, title = {Latin squares and partial groupoids {[Abstract} of thesis]}, journal = {Commentationes Mathematicae Universitatis Carolinae}, publisher = {mathdoc}, volume = {31}, number = {1}, year = {1990}, zbl = {0694.05016}, language = {en}, url = {http://geodesic.mathdoc.fr/item/CMUC_1990__31_1_a31/} }
Drápal, Aleš. Latin squares and partial groupoids [Abstract of thesis]. Commentationes Mathematicae Universitatis Carolinae, Tome 31 (1990) no. 1. http://geodesic.mathdoc.fr/item/CMUC_1990__31_1_a31/