@book{30412,
	author = {Ravishankar, V.},
	title = {Engineering Physics II:},
	publisher = {Indian Insitiute of Technology},
	address = {Kanpur},
	url = {http://video.snu.edu.in/index.php?id=4601&cat=Basic courses(Sem 1 and 2)&course=Engineering Physics II&url=Phase1_Video/122104016/lec11.mp4}
}