%0 Journal Article
%A A. Szankowski
%T Three-space problems for the approximation property
%J Journal of the European Mathematical Society
%D 2009
%P 273-282
%V 11
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.4171/jems/150/
%R 10.4171/jems/150
%F JEMS_2009_11_2_a2