@book{36199,
	author = {"Hirani, Harish"},
	title = {Tribology:},
	publisher = {Indian Insitiute of Technology},
	address = {Delhi},
	url = {http://video.snu.edu.in/index.php?id=9502&cat=Mechanical Engineering&course=Tribology&url=Phase2_Video/112102014/mod05lec24.mp4}
}