@article{ARM_1967__3_2_a4,
     author = {Svoboda, Karel},
     title = {Sur la d\'eformation projective des pseudocongruences compl\`etement focales. {I}},
     journal = {Archivum mathematicum},
     pages = {83--98},
     publisher = {mathdoc},
     volume = {03},
     number = {2},
     year = {1967},
     mrnumber = {0224000},
     zbl = {0212.54002},
     language = {fr},
     url = {http://geodesic.mathdoc.fr/item/ARM_1967__3_2_a4/}
}