%0 Journal Article %A Bartholdi, Laurent %A Grigorchuk, Rostislav %T On Parabolic Subgroups and Hecke Algebras of some Fractal Groups %J Serdica Mathematical Journal %D 2002 %P 47-90 %V 28 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/SMJ2_2002_28_1_a2/ %G en %F SMJ2_2002_28_1_a2