%0 Journal Article %A R. I. Grigorchuk %T An example of a finitely presented amenable group not belonging to the class $EG$ %J Sbornik. Mathematics %D 1998 %P 75-95 %V 189 %N 1 %U http://geodesic.mathdoc.fr/item/SM_1998_189_1_a3/ %G en %F SM_1998_189_1_a3