@book{31110,
	author = {Manjunath, A.R.},
	title = {Introduction to Helicopter Aerodynamics and Dynamics:},
	publisher = {Indian Insitiute of Technology},
	address = {Kanpur},
	url = {http://video.snu.edu.in/index.php?id=5301&cat=Aerospace Engineering&course=Introduction to Helicopter Aerodynamics and Dynamics&url=Phase2_Video/101104017/mod01lec20.mp4}
}