@book{20547,
	author = {Basu, Anupam},
	title = {Artificial Intelligence:},
	publisher = {Indian Insitiute of Technology},
	address = {Kharagpur},
	url = {http://video.snu.edu.in/index.php?id=1046&cat=Computer Science and  Engineering&course=Artificial Intelligence&url=Phase1_Video/106105077/lec15.mp4}
}