@article {6627,
	title = {"Electrochemical Impedance Spectroscopic Investigation of Tantalum and its Passive Films in Acidic and Neutral  Solutions ".},
	journal = {Electrochim. Acta },
	volume = {28},
	year = {1993},
	pages = {2231},
	author = {W. A. Badawy and Kh. M. Ismail}
}
