%0 Journal Article
%A Jussi Väisälä
%T Quasisymmetry and Unions.
%J Manuscripta mathematica
%D 1990
%P 101-112
%V 68
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MM2_1990__68_2_155517/
%F MM2_1990__68_2_155517