TY  - JOUR
AU  - Ermolitski, A. A.
TI  - Riemannian regular $\sigma$-manifolds
JO  - Czechoslovak Mathematical Journal
PY  - 1994
SP  - 57
EP  - 66
VL  - 44
IS  - 1
UR  - http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1994.128440/
DO  - 10.21136/CMJ.1994.128440
LA  - en
ID  - 10_21136_CMJ_1994_128440
ER  -