@book{48088,
	author = {Samah Mohamed Hamdy Ahmed  and Lotfia Elnadi , },
	title = {Spectroscopic study of Eu-doped nano semiconductors prepared by laser ablation or RF sputtering / },
	publisher = {Samah Mohamed Hamdy Ahmed , },
	year = {2013},
	address = {Cairo : },
	url = {http://172.23.153.220/th.pdf}
}