@article{paperid:200125, author = {Vahidian Kamyad, Ali and Farahi, Mohammad Hadi}, title = {an effective apprach of the optimal control for an inhomogeneous wave problem}, journal = {IUST International Journal Of Engineering Science}, year = {1999}, month = {December}, issn = {1681-066X}, keywords = {wave eqation ; measure theory ; semigroup theory ; moment problems ; optimal control ; linear programming ; approximation}, }