@article {7309,
	title = {A Numerical Calculation for Electron Impact Excition of Copper  },
	journal = {International Journal of Theoretical Physics},
	volume = {43},
	year = {2004},
	pages = {111-125},
	author = {M. Ismail and A. Farraga and H. A. Abdusalam and Th. El-Sherbini}
}
