@article{10_4153_CMB_2009_004_5,
     author = {Choi, Changsun and Kim, Ju Myung and Lee, Keun Young},
     title = {Right and {Left} {Weak} {Approximation} {Properties} in {Banach} {Spaces}},
     journal = {Canadian mathematical bulletin},
     pages = {28--38},
     year = {2009},
     volume = {52},
     number = {1},
     doi = {10.4153/CMB-2009-004-5},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-2009-004-5/}
}