Voir la notice de l'article provenant de la source Czech Digital Mathematics Library
@article{UM_2004__12_3_a6, author = {Beran, Ladislav and Kov\'a\v{r}, Petr and P\"oschl, Radko}, title = {Inciden\v{c}n{\'\i} matice uspo\v{r}\'ad\'an{\'\i} m\'a determinant rovn\'y jedn\'e}, journal = {U\v{c}itel matematiky}, pages = {184--188}, publisher = {mathdoc}, volume = {12}, number = {3}, year = {2004}, language = {cz}, url = {http://geodesic.mathdoc.fr/item/UM_2004__12_3_a6/} }
Beran, Ladislav; Kovář, Petr; Pöschl, Radko. Incidenční matice uspořádání má determinant rovný jedné. Učitel matematiky, Tome 12 (2004) no. 3, pp. 184-188. http://geodesic.mathdoc.fr/item/UM_2004__12_3_a6/