@book{30307,
	author = {Gupta, S.K.},
	title = {Materials Science:},
	publisher = {Indian Insitiute of Technology},
	address = {Delhi},
	url = {http://video.snu.edu.in/index.php?id=4495&cat=Basic courses(Sem 1 and 2)&course=Materials Science&url=Phase1_Video/122102008/lec15.mp4}
}