%0 Journal Article
%A B.H. Neumann
%A G. Baumslag
%A W.W. Boone
%T Some Unsolvable Problems about Elements and Subgroups of Groups.
%J Mathematica Scandinavica
%D 1959
%P 191-201
%V 7
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MS2_1959__7_165713/
%F MS2_1959__7_165713