@article{AUPO_1977__16_1_a9,
     author = {Zeman, Ji\v{r}{\'\i}},
     title = {\"Uber eine {Anwendung} der {Phasentheorie}},
     journal = {Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica},
     pages = {137--140},
     publisher = {mathdoc},
     volume = {16},
     number = {1},
     year = {1977},
     mrnumber = {0594989},
     zbl = {0415.34015},
     language = {ge},
     url = {http://geodesic.mathdoc.fr/item/AUPO_1977__16_1_a9/}
}