Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{MS_1949__66_3_a5, author = {{\CYRB}.{\CYRA}. {\CYRR}{\cyro}{\cyrz}{\cyre}{\cyrn}{\cyrf}{\cyre}{\cyrl}{\cyrsftsn}{\cyrd}}, title = {{\CYRP}{\cyrr}{\cyro}{\cyre}{\cyrk}{\cyrt}{\cyri}{\cyrv}{\cyrn}{\cyro}-{\cyrd}{\cyri}{\cyrf}{\cyrf}{\cyre}{\cyrr}{\cyre}{\cyrn}{\cyrc}{\cyri}{\cyra}{\cyrl}{\cyrsftsn}{\cyrn}{\cyra}{\cyrya} {\cyrg}{\cyre}{\cyro}{\cyrm}{\cyre}{\cyrt}{\cyrr}{\cyri}{\cyrya} {\cyrs}{\cyre}{\cyrm}{\cyre}{\cyrishrt}{\cyrs}{\cyrt}{\cyrv} {\cyrp}{\cyra}{\cyrr} $P_m+P_{n-m-1}$ {\cyrv} $P_n$}, journal = {Matemati\v{c}eskij sbornik}, pages = {405--428}, publisher = {mathdoc}, volume = {66}, number = {3}, year = {1949}, zbl = {0041.49402}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MS_1949__66_3_a5/} }
Б.А. Розенфельд. Проективно-дифференциальная геометрия семейств пар $P_m+P_{n-m-1}$ в $P_n$. Matematičeskij sbornik, Tome 66 (1949) no. 3, pp. 405-428. http://geodesic.mathdoc.fr/item/MS_1949__66_3_a5/