@misc{10_21136_AM_1959_102687, title = {Zpr\'avy}, journal = {Applications of Mathematics}, pages = {470--472}, year = {1959}, volume = {4}, number = {6}, doi = {10.21136/AM.1959.102687}, language = {cs}, url = {http://geodesic.mathdoc.fr/articles/10.21136/AM.1959.102687/} }