@book{22779,
	author = {Chakraborty, G.},
	title = {Design of Machine Elements I:},
	publisher = {Indian Insitiute of Technology},
	address = {Kharagpur},
	url = {http://video.snu.edu.in/index.php?id=2883&cat=Mechanical Engineering&course=Design of Machine Elements I&url=Phase1_Video/112105124/lec04.mp4}
}