TY  - JOUR
AU  - Erik Valtonen
TI  - Some Homological properties of commutative semitrivial ring extensions.
JO  - Manuscripta mathematica
PY  - 1989
SP  - 45
EP  - 68
VL  - 63
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MM2_1989__63_3_155367/
ID  - MM2_1989__63_3_155367
ER  -