@article{10_21136_CPM_1964_117496,
     author = {Nov\'ak, V{\'\i}t\v{e}zslav},
     title = {O jedn\'e vlastnosti ordin\'aln{\'\i}ho sou\v{c}tu},
     journal = {\v{C}asopis pro p\v{e}stov\'an{\'\i} matematiky},
     pages = {78--84},
     publisher = {mathdoc},
     volume = {089},
     number = {1},
     year = {1964},
     doi = {10.21136/CPM.1964.117496},
     mrnumber = {0182579},
     zbl = {0132.26003},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CPM.1964.117496/}
}