@book{4002,
	author = {Sethi, Adarshpal S. and Hnatyshin, Vasil Y.},
	title = {The Practical Opnet User Guide for Computer Network Simulation /},
	publisher = {Taylor and Francis Group/CRC,},
	year = {2013.},
	address = {London},
	url = {http://www.amazon.com/exec/obidos/ASIN/1439812055/chopaconline-20}
}