TY  - JOUR
AU  - D. B. Fuchs
TI  - Duality of functors in the category of homotopy types
JO  - Doklady Akademii Nauk
PY  - 1967
SP  - 1232
EP  - 1235
VL  - 175
IS  - 6
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1967_175_6_a8/
LA  - ru
ID  - DAN_1967_175_6_a8
ER  -