@book{71433,
	author = {Wilson, Stephen G.},
	title = { Digital modulation and coding},
	publisher = {Pearson Education},
	year = {c.1996},
	address = {New Delhi},
	url = {http://www.amazon.com/Digital-Modulation-Coding-Stephen-Wilson/dp/8131721434/ref=sr_1_1?ie=UTF8&qid=1455076098&sr=8-1&keywords=9788131721438}
}