Voir la notice de l'article provenant de la source Czech Digital Mathematics Library
@article{UM_2001__9_4_a6, author = {Kupkov\'a, Erika}, title = {Nerie\v{s}ite\v{l}n\'a \'uloha v 3. ro\v{c}n{\'\i}ku {Z\v{S}}}, journal = {U\v{c}itel matematiky}, pages = {228--233}, publisher = {mathdoc}, volume = {09}, number = {4}, year = {2001}, language = {sl}, url = {http://geodesic.mathdoc.fr/item/UM_2001__9_4_a6/} }
Kupková, Erika. Neriešiteľná úloha v 3. ročníku ZŠ. Učitel matematiky, Tome 09 (2001) no. 4, pp. 228-233. http://geodesic.mathdoc.fr/item/UM_2001__9_4_a6/