@article{10_21136_CMJ_1967_100783,
     author = {Hor\'ak, Vladim{\'\i}r},
     title = {Contribution \`a l'\'etude des transformations d\'eveloppables des congruences de droites et de leurs transform\'ees de {Laplace}},
     journal = {Czechoslovak Mathematical Journal},
     pages = {347--371},
     publisher = {mathdoc},
     volume = {17},
     number = {3},
     year = {1967},
     doi = {10.21136/CMJ.1967.100783},
     mrnumber = {0218991},
     zbl = {0173.23401},
     language = {fr},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1967.100783/}
}