@article {24726,
	title = {Effect of Periodically Varying Cross Section on Beam{\textquoteright}s Behavior},
	journal = {Wulfenia Journal, Kiagentfurt, Austerai},
	volume = {20},
	year = {2013},
	pages = {169-179},
	author = {Mostafa A. M. Abdeen and W Abbas and S. M. Bichir}
}
