%0 Journal Article %A Qian, Z.Y. %A Han, Z.D. %A Atluri, S.N. %D 2004 %J Computer Modeling in Engineering \& Sciences %@ 1526-1506 %V 5 %N 6 %P 541--562 %T Directly Derived Non-Hyper-Singular Boundary Integral Equations for Acoustic Problems, and Their Solution through Petrov-Galerkin Schemes %M doi:10.3970/cmes.2004.005.541 %U http://www.techscience.com/CMES/v5n6/33399