%0 Journal Article %A G. Cravo %T An Algebraic Analysis of Workflows %J Mathematica balkanica %D 2011 %P 375 %V 25 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/MABA_2011_25_4_a3/ %F MABA_2011_25_4_a3