Joseph, D.Saxena, A.Maind, S. D.Choudhury, R. K.2008-04-022008-04-022007http://hdl.handle.net/123456789/9203894 bytestext/htmlenPIXEproton beamEDXRFforensic scienceinktaggingrare earth taggantsCharacterization of offset printing ink tagged with rare-earth taggants by x-ray emission techniquesArticle