Voir la notice de l'article provenant de la source Czech Digital Mathematics Library
@article{UM_2012__20_2_a8, author = {Jane\v{c}ek, Franti\v{s}ek}, title = {Josef {Pol\'ak:} {St\v{r}edo\v{s}kolsk\'a} matematika v \'uloh\'ach {II}}, journal = {U\v{c}itel matematiky}, pages = {115--117}, publisher = {mathdoc}, volume = {20}, number = {2}, year = {2012}, language = {cz}, url = {http://geodesic.mathdoc.fr/item/UM_2012__20_2_a8/} }
Janeček, František. Josef Polák: Středoškolská matematika v úlohách II. Učitel matematiky, Tome 20 (2012) no. 2, pp. 115-117. http://geodesic.mathdoc.fr/item/UM_2012__20_2_a8/