%0 Journal Article %A Ribenboim, P. %T Higher order derivations of modules %J Portugaliae mathematica %D 1980 %P 381-397 %V 39 %N 1-4 %I mathdoc %U http://geodesic.mathdoc.fr/item/PORMA_1980__39_1-4_115428/ %G en %F PORMA_1980__39_1-4_115428