@article{10_21136_CMJ_1991_102506,
     author = {Fischer, Jan and Kol\'a\v{r}, Pavel and Maslowski, Bohdan and Seidler, Jan and Schwabik, \v{S}tefan},
     title = {Ivo {Vrko\v{c}} sexagenarian},
     journal = {Czechoslovak Mathematical Journal},
     pages = {737--750},
     year = {1991},
     volume = {41},
     number = {4},
     doi = {10.21136/CMJ.1991.102506},
     mrnumber = {1134964},
     zbl = {0755.01029},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1991.102506/}
}