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@article{MM2_1989__63_3_155367, author = {Erik Valtonen}, title = {Some {Homological} properties of commutative semitrivial ring extensions.}, journal = {Manuscripta mathematica}, pages = {45--68}, publisher = {mathdoc}, volume = {63}, number = {3}, year = {1989}, zbl = {0669.13003}, url = {http://geodesic.mathdoc.fr/item/MM2_1989__63_3_155367/} }
Erik Valtonen. Some Homological properties of commutative semitrivial ring extensions.. Manuscripta mathematica, Tome 63 (1989) no. 3, pp. 45-68. http://geodesic.mathdoc.fr/item/MM2_1989__63_3_155367/