TY  - JOUR
AU  - A. P. Kombarov
TI  - On tightness and normality of $\Sigma$-products
JO  - Doklady Akademii Nauk
PY  - 1978
SP  - 775
EP  - 778
VL  - 239
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1978_239_4_a5/
LA  - ru
ID  - DAN_1978_239_4_a5
ER  -