%0 Journal Article %A G. Pataki %T On the Extensions, Refinements and Modifications of Relators %J Mathematica balkanica %D 2001 %P 155 %V 15 %N 1-2 %I mathdoc %U http://geodesic.mathdoc.fr/item/MABA_2001_15_1-2_a13/ %F MABA_2001_15_1-2_a13