@article{10_21136_CMJ_1955_100170,
     author = {\v{S}vec, Alois},
     title = {D\'eformation projective des congruences de droites dans $S_n$},
     journal = {Czechoslovak Mathematical Journal},
     pages = {546--558},
     publisher = {mathdoc},
     volume = {05},
     number = {4},
     year = {1955},
     doi = {10.21136/CMJ.1955.100170},
     mrnumber = {0080338},
     zbl = {0068.35503},
     language = {fr},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1955.100170/}
}