TY  - JOUR
AU  - D. V. Ivanov
TI  - Totally geodesic subsets in the variety of directions of physical space
JO  - Zapiski Nauchnykh Seminarov POMI
PY  - 2001
SP  - 141
EP  - 153
VL  - 279
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/ZNSL_2001_279_a7/
LA  - ru
ID  - ZNSL_2001_279_a7
ER  -