@book{29820,
	author = {Sengupta, Somnath},
	title = {Digital Voice And Picture Communication:},
	publisher = {Indian Insitiute of Technology},
	address = {Kharagpur},
	url = {http://video.snu.edu.in/index.php?id=4008&cat=Electronics And Communication Engineering&course=Digital Voice And Picture Communication&url=Phase1_Video/117105081/lec26.mp4}
}