@article{10_21136_CMJ_1968_100821,
     author = {Pt\'ak, Vlastimil},
     title = {Professor {Miroslav} {Kat\v{e}tov's} fiftieth birthday},
     journal = {Czechoslovak Mathematical Journal},
     pages = {192--193},
     year = {1968},
     volume = {18},
     number = {1},
     doi = {10.21136/CMJ.1968.100821},
     zbl = {0155.01001},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1968.100821/}
}