%0 Journal Article
%A Heiner Zieschang
%A Donald J. Collins
%T On the Nielsen Method in Free Products with Amalgamated Subgroups.
%J Mathematische Zeitschrift
%D 1988
%P 97-118
%V 197
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MZ_1988__197_1_183720/
%F MZ_1988__197_1_183720