@article{INTG_1971_3_a2,
     author = {G. F. Laptev and N. M. Ostianu},
     title = {Distributions of $m$-dimensional line elements in a~space with projective {connection.~I}},
     journal = {Itogi Nauki i Tekhniki. Seriya Problemy Geometrii. Trudy Geometricheskogo Seminara},
     pages = {49--94},
     publisher = {mathdoc},
     volume = {3},
     year = {1971},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/INTG_1971_3_a2/}
}