@book{47022,
	author = {Engy Moustafa Aly Maher and Khaled Shawky Hassan , },
	title = {Device - to - device (D2D) communications in cellular networks / },
	publisher = {Engy Moustafa Aly Maher , },
	year = {2013},
	address = {Cairo : },
	url = {http://172.23.153.220/th.pdf}
}