%0 Journal Article
%T Ultrasound Promoted Synthesis of 3-Carboxycoumarins in Aqueous Media
%A Jian-Long Du
%A Li-Jun Li
%A Da-Hai Zhang
%J Journal of Chemistry
%D 2006
%I Hindawi Publishing Corporation
%R 10.1155/2006/278568
%U http://dx.doi.org/10.1155/2006/278568