@article{10_21136_AM_1968_103168,
     author = {N\'aden{\'\i}k, Zbyn\v{e}k and Zaj{\'\i}\v{c}ek, Ladislav},
     title = {Geod\"atische {Linie} und {Gegennormalschnitte.} {I}},
     journal = {Applications of Mathematics},
     pages = {258--263},
     publisher = {mathdoc},
     volume = {13},
     number = {3},
     year = {1968},
     doi = {10.21136/AM.1968.103168},
     mrnumber = {0236828},
     zbl = {0165.24302},
     language = {ge},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/AM.1968.103168/}
}