%0 Journal Article %A Alex Patchkoria %T Extensions of semimodules and the Takahashi functor $Ext_{\Lambda}(C, A)$ %J Homology, homotopy, and applications %D 2003 %P 387-406 %V 5 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4310/HHA.2003.v5.n1.a16/ %R 10.4310/HHA.2003.v5.n1.a16 %G en %F HHA_2003_5_1_a15