%0 Journal Article %A Lixin Cheng %A Qingjin Cheng %A Huihua Shi %T Minimal ball-coverings in Banach spaces and their application %J Studia Mathematica %D 2009 %P 15-27 %V 192 %N 1 %U http://geodesic.mathdoc.fr/articles/10.4064/sm192-1-2/ %R 10.4064/sm192-1-2 %G en %F 10_4064_sm192_1_2