@article {6685,
	title = {"Electrochemical Behaviour of Niobium Passive Films in Nitric Acid  Solutions ". },
	journal = {         Ind.J.Chem.Technol},
	volume = {4},
	year = {1997},
	pages = {94},
	author = {W. A. Badawy and F. M. Al- Kharafi}
}
