%0 Journal Article %T The Numerical Solution of the Exterior Boundary Value Problems for the Helmholtz's Equation for the Pseudosphere %A Yajni Warnapala %A Raveena Siegel %A Jane Pleskunas %J IAENG International Journal of Applied Mathematics %D 2011 %I International Association of Engineers (IAENG) %U http://www.iaeng.org/IJAM/issues_v41/issue_2/IJAM_41_2_04.pdf