TY - JOUR AU - Dominique Arlettaz TI - Characteristic classes and obstruction theory for infinite loop spaces. JO - Manuscripta mathematica PY - 1989 SP - 431 EP - 444 VL - 64 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MM2_1989__64_2_155417/ ID - MM2_1989__64_2_155417 ER -