Semilinear wave equations with nonlinear damping and source terms / Md. Abu Naim Sheikh [PhD Thesis] Sheikh, Md. Abu Naim Mathematics 515.355 SHS Thesis (PhD )--Department of Mathematics, University of Dhaka, Session : 1999-2000. Includes bibliographical references. Dhaka : University of Dhaka, 2003. 2003. 2003 Text [9], 121 p. ; eng