@article{10_21136_AM_1964_102898,
     author = {Vodi\v{c}ka, V\'aclav},
     title = {Dva vzorce z oper\'atorov\'eho po\v{c}tu},
     journal = {Applications of Mathematics},
     pages = {212--225},
     year = {1964},
     volume = {9},
     number = {3},
     doi = {10.21136/AM.1964.102898},
     mrnumber = {0182841},
     zbl = {0137.31202},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/AM.1964.102898/}
}