Mittal, K. C.Mondal, J.Ghatak, S.Dhavale, A. S.Ghodke, S. R.Vohra, R. S.Jawale, S. B.Dutta, D.Pujari, P. K.Saha, T. K.Bapat, A. V.2011-12-232011-12-232011AIP Conference Proceedings, 2011. Vol. 1352: pp. 100-115http://hdl.handle.net/123456789/55253896 bytestext/htmlencavitybead-pullPASingot niobiumArticle