TY  - JOUR
AU  - D. V. Ivanov
TI  - Absence of three-dimensional totally geodesic submanifolds in the manifold of directions of physical space
JO  - Zapiski Nauchnykh Seminarov POMI
PY  - 2001
SP  - 173
EP  - 174
VL  - 280
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/ZNSL_2001_280_a10/
LA  - ru
ID  - ZNSL_2001_280_a10
ER  -