TY  - JOUR
AU  - R. M. Geidel'man
TI  - Bending of congruences of straight lines in the three-dimensional extended non-Euclidean space
JO  - Izvestiâ vysših učebnyh zavedenij. Matematika
PY  - 1966
SP  - 39
EP  - 48
IS  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/IVM_1966_5_a5/
LA  - ru
ID  - IVM_1966_5_a5
ER  -