%0 Journal Article %A N. D. Gilbert %T Derivations and relation modules for inverse semigroups %J Algebra and discrete mathematics %D 2011 %P 1-19 %V 12 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/ADM_2011_12_1_a0/ %G en %F ADM_2011_12_1_a0