TY  - JOUR
AU  - V. Bartik
TI  - Aleksandrov–Chekh cohomology and mappings into Eilenberg–Maclane
JO  - Sbornik. Mathematics
PY  - 1968
SP  - 221
EP  - 228
VL  - 5
IS  - 2
UR  - http://geodesic.mathdoc.fr/item/SM_1968_5_2_a4/
LA  - en
ID  - SM_1968_5_2_a4
ER  -