TY - JOUR AU - Choi, Changsun AU - Kim, Ju Myung AU - Lee, Keun Young TI - Right and Left Weak Approximation Properties in Banach Spaces JO - Canadian mathematical bulletin PY - 2009 SP - 28 EP - 38 VL - 52 IS - 1 UR - http://geodesic.mathdoc.fr/articles/10.4153/CMB-2009-004-5/ DO - 10.4153/CMB-2009-004-5 ID - 10_4153_CMB_2009_004_5 ER -