@article{INTA_1967_a8,
     author = {R. M. Geidel'man},
     title = {Differential geometry of families of subspaces in multidimensional homogeneous spaces},
     journal = {Itogi Nauki i Tekhniki. Seriya Algebra. Geometriya. Topologiya },
     pages = {323--374},
     publisher = {mathdoc},
     year = {1967},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/INTA_1967_a8/}
}