@article{INTG_1969_2_a11,
     author = {Yu. V. Pavlyuchenko and V. V. Ryzhkov},
     title = {The deformation of point correspondences between projective spaces},
     journal = {Itogi Nauki i Tekhniki. Seriya Problemy Geometrii. Trudy Geometricheskogo Seminara},
     pages = {263--275},
     publisher = {mathdoc},
     volume = {2},
     year = {1969},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/INTG_1969_2_a11/}
}