Voir la notice de l'article provenant de la source Czech Digital Mathematics Library
@misc{UM_1993__1_1_a24, title = {Matematick\'e znaky}, journal = {U\v{c}itel matematiky}, pages = {49--50}, publisher = {mathdoc}, volume = {01}, number = {1}, year = {1993}, language = {cz}, url = {http://geodesic.mathdoc.fr/item/UM_1993__1_1_a24/} }
Matematické znaky. Učitel matematiky, Tome 01 (1993) no. 1, pp. 49-50. http://geodesic.mathdoc.fr/item/UM_1993__1_1_a24/