@book{36214,
	author = {"Hirani, Harish"},
	title = {Tribology:},
	publisher = {Indian Insitiute of Technology},
	address = {Delhi},
	url = {http://video.snu.edu.in/index.php?id=9517&cat=Mechanical Engineering&course=Tribology&url=Phase2_Video/112102014/mod06lec39.mp4}
}