@book{20041,
	author = {Menon, Devdas},
	title = {Pre-stressed Concrete Structures:},
	publisher = {Indian Insitiute of Technology},
	address = {Madras},
	url = {http://video.snu.edu.in/index.php?id=618&cat=Civil Engineering&course=Pre-stressed Concrete Structures&url=Phase1_Video/105106118/lec05.mp4}
}