TY  - JOUR
AU  - A. S. Mishchenko
TI  - Homotopy invariants of nonsimply connected manifolds. I.~Rational invariants
JO  - Izvestiya. Mathematics 
PY  - 1970
SP  - 506
EP  - 519
VL  - 4
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/IM2_1970_4_3_a1/
LA  - en
ID  - IM2_1970_4_3_a1
ER  -