@article{10_21136_CPM_1968_108576,
     author = {N\'aden{\'\i}k, Zbyn\v{e}k},
     title = {Erste {Kr\"ummungsfunktion} der {Rotationseifl\"achen}},
     journal = {\v{C}asopis pro p\v{e}stov\'an{\'\i} matematiky},
     pages = {127--133},
     year = {1968},
     volume = {93},
     number = {2},
     doi = {10.21136/CPM.1968.108576},
     mrnumber = {0242064},
     zbl = {0157.28001},
     language = {de},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CPM.1968.108576/}
}