@article{10_21136_CPM_1980_118073,
     author = {N\'aden{\'\i}k, Zbyn\v{e}k},
     title = {Eine isoperimetrische {Ungleichung} f\"ur geschlossene {Kurven} im vierdimensionalen {Raum}},
     journal = {\v{C}asopis pro p\v{e}stov\'an{\'\i} matematiky},
     pages = {302--310},
     year = {1980},
     volume = {105},
     number = {3},
     doi = {10.21136/CPM.1980.118073},
     mrnumber = {588681},
     zbl = {0461.53001},
     language = {de},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CPM.1980.118073/}
}