@article{10_21136_CPMF_1936_109331,
     author = {Brdi\v{c}ka, Rudolf},
     title = {Isotopy},
     journal = {\v{C}asopis pro p\v{e}stov\'an{\'\i} matematiky a fysiky},
     pages = {D136},
     publisher = {mathdoc},
     volume = {65},
     number = {4},
     year = {1936},
     doi = {10.21136/CPMF.1936.109331},
     language = {cz},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CPMF.1936.109331/}
}