TY  - JOUR
AU  - G. V. Ivshina
TI  - Invariants of a four-dimensional Riemannian space and their changes under conformal transformation
JO  - Trudy Geometricheskogo Seminara
PY  - 1991
SP  - 57
EP  - 63
VL  - 21
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/KUTGS_1991_21_a7/
LA  - ru
ID  - KUTGS_1991_21_a7
ER  -