%0 Journal Article %A A. Necib %A A. Merad %T Laplace Transform and Homotopy Perturbation Methods for Solving the Pseudohyperbolic Integrodifferential Problems with Purely Integral Conditions %J Kragujevac Journal of Mathematics %D 2020 %P 251 %V 44 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/KJM_2020_44_2_a6/ %G en %F KJM_2020_44_2_a6