@article{10_21136_CPM_1972_117754,
     author = {Bayer, Jaroslav},
     title = {O projektivn{\'\i}ch deformac{\'\i}ch kongruenc{\'\i} rovin v $n$-rozm\v{e}rn\'em projektivn{\'\i}m prostoru},
     journal = {\v{C}asopis pro p\v{e}stov\'an{\'\i} matematiky},
     pages = {113--130},
     publisher = {mathdoc},
     volume = {097},
     number = {2},
     year = {1972},
     doi = {10.21136/CPM.1972.117754},
     mrnumber = {0308951},
     zbl = {0234.53012},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CPM.1972.117754/}
}