%0 Journal Article %A Hernán Castro %A Juan Dávila %A Hui Wang %T A Hardy type inequality for $ {W}_{0}^{2,1}(\Omega )$ functions %J Comptes Rendus. Mathématique %D 2011 %P 765-767 %V 349 %N 13-14 %I Elsevier %R 10.1016/j.crma.2011.06.026 %G en %F CRMATH_2011__349_13-14_765_0