Louis W. Ehrlich Solving the Biharmonic Equation in a Square: A Direct Versus a Semidirect Method. [Citation Graph (0, 0)][DBLP] Commun. ACM, 1973, v:16, n:11, pp:711-714 [Journal]

Louis W. Ehrlich Monte Carlo Solutions of Boundary Value Problems Involving the Difference Analogue of 6^{2}u6x^{2} +6^{2}u6y^{2} +Ky6u6 y=0. [Citation Graph (0, 0)][DBLP] J. ACM, 1959, v:6, n:2, pp:204-218 [Journal]