@article{10_21136_CPMF_1950_123881,
     author = {\v{C}ech, Eduard},
     title = {G\'eom\'etrie projective diff\'erentielle des correspondances entre deux espaces. {III}},
     journal = {\v{C}asopis pro p\v{e}stov\'an{\'\i} matematiky a fysiky},
     pages = {137--158},
     publisher = {mathdoc},
     volume = {75},
     number = {3},
     year = {1950},
     doi = {10.21136/CPMF.1950.123881},
     mrnumber = {0042761},
     zbl = {0041.09002},
     language = {fr},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CPMF.1950.123881/}
}