TY  - JOUR
AU  - V. A. Efremovich
AU  - Yu. B. Rudyak
TI  - On the concept of the Euler characteristic
JO  - Trudy Matematicheskogo Instituta imeni V.A. Steklova
PY  - 1976
VL  - 31
IS  - 5
UR  - http://geodesic.mathdoc.fr/item/RM_1976_31_5_a25/
LA  - ru
ID  - RM_1976_31_5_a25
ER  -