@article{IVM_1967_8_a6,
     author = {B. A. Rozenfel'd and L. V. L'vova and T. A. Semenova},
     title = {Congruences of planes in elliptic and quasi-elliptic spaces},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {60--71},
     publisher = {mathdoc},
     number = {8},
     year = {1967},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1967_8_a6/}
}