%0 Journal Article
%A Kurt Strebel
%T Point shift differentials and extremal quasiconformal mappings
%J Annales Fennici Mathematici
%D 1998
%P 475-494
%V 23
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/AFM_1998_23_2_a10/
%G en
%F AFM_1998_23_2_a10