@book{29053,
	author = {Dwivedi, D. K. et al.},
	title = {Industrial Engineering:},
	publisher = {Indian Insitiute of Technology},
	address = {Roorkee},
	url = {http://video.snu.edu.in/index.php?id=3236&cat=Mechanical Engineering&course=Industrial Engineering&url=Phase1_Video/112107143/mod04lec08.mp4}
}