TY  - JOUR
AU  - A. M. Nikitin
TI  - On some models in differential geometry
JO  - Zapiski Nauchnykh Seminarov POMI
PY  - 1993
SP  - 122
EP  - 153
VL  - 205
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/ZNSL_1993_205_a9/
LA  - ru
ID  - ZNSL_1993_205_a9
ER  -