%0 Journal Article %A Kao, Jui-Hsiang %D 2016 %J Computer Modeling in Engineering \& Sciences %@ 1526-1506 %V 112 %N 1 %P 59--73 %T Applying a Step Approach Method in Solving the Multi-Frequency Radiation From a Complex Obstacle %M doi:10.3970/cmes.2016.112.059 %U http://www.techscience.com/CMES/v112n1/27337