On Cartesian Powers of a Rational Group.
Klassen von Moduln über Dedekind-Ringen und Satz von Stein-Serre
A simple proof for a theorem of chase
Cohomology theories and infinite CW-Complexes.
On ...-filtered vector spaces and their application to abelian p-groups: I.
The Structure of Ext (A,..) and V = L.
On the Rank of Ext.
Abelian group extensions and the axiom of constructibility.
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