@article{PMFA_1977_22_5_a1,
     author = {Vl\v{c}ek, Ivan and Zieleniec, J\'ozef},
     title = {O teorii katastrof},
     journal = {Pokroky matematiky, fyziky a astronomie},
     pages = {246--262},
     year = {1977},
     volume = {22},
     number = {5},
     mrnumber = {0478213},
     zbl = {0373.58001},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/item/PMFA_1977_22_5_a1/}
}