@article{10_21136_CPMF_1949_123060,
     author = {\v{C}ech, Eduard},
     title = {Geometrie projective differentielle des correspondances entre deux espaces. {I}},
     journal = {\v{C}asopis pro p\v{e}stov\'an{\'\i} matematiky a fysiky},
     pages = {32--48},
     publisher = {mathdoc},
     volume = {74},
     number = {2},
     year = {1949},
     doi = {10.21136/CPMF.1949.123060},
     mrnumber = {0039342},
     zbl = {0041.09002},
     language = {fr},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CPMF.1949.123060/}
}