%0 Journal Article %A P. A. Zalesskii %T Profinite groups acting on trees and having no free nonabelian pro-$\mathbf p$-subgroups %J Sbornik. Mathematics %D 1991 %P 57-67 %V 69 %N 1 %U http://geodesic.mathdoc.fr/item/SM_1991_69_1_a3/ %G en %F SM_1991_69_1_a3