TY  - JOUR
AU  - Klaus Kaiser
TI  - On reductive and projective classes
JO  - Colloquium Mathematicum
PY  - 1973
SP  - 7
EP  - 9
VL  - 28
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4064/cm-28-1-7-9/
DO  - 10.4064/cm-28-1-7-9
LA  - en
ID  - 10_4064_cm_28_1_7_9
ER  -