TY  - JOUR
AU  - A. Szankowski
TI  - Three-space problems for the approximation property
JO  - Journal of the European Mathematical Society
PY  - 2009
SP  - 273
EP  - 282
VL  - 11
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4171/jems/150/
DO  - 10.4171/jems/150
ID  - JEMS_2009_11_2_a2
ER  -