%0 Journal Article
%A Erik Valtonen
%T Some Homological properties of commutative semitrivial ring extensions.
%J Manuscripta mathematica
%D 1989
%P 45-68
%V 63
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MM2_1989__63_3_155367/
%F MM2_1989__63_3_155367