@article{10_21136_CMJ_1963_100582,
     author = {Cenkl, Bohumil},
     title = {R\'eseaux semi-conjugu\'es sur une surface dans l'espace \`a connexion projective \`a quatre dimensions},
     journal = {Czechoslovak Mathematical Journal},
     pages = {492--506},
     publisher = {mathdoc},
     volume = {13},
     number = {4},
     year = {1963},
     doi = {10.21136/CMJ.1963.100582},
     mrnumber = {0160171},
     zbl = {0129.14401},
     language = {fr},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1963.100582/}
}