@article{10_21136_AM_1977_103682,
     author = {Grygarov\'a, Libu\v{s}e},
     title = {Lokale {Ber\"uhrungskegel} einer {Menge} im {Euklidischen} {Raum} $E_n$},
     journal = {Applications of Mathematics},
     pages = {110--115},
     publisher = {mathdoc},
     volume = {22},
     number = {2},
     year = {1977},
     doi = {10.21136/AM.1977.103682},
     mrnumber = {0428194},
     zbl = {0386.52003},
     language = {ge},
     url = {https://geodesic-test.mathdoc.fr/articles/10.21136/AM.1977.103682/}
}