Gaurav Gupta Sanjoy Kumar Saha Shayok Chakraborty Chandan Mazumdar Document Frauds: Identification and Linking Fake Document to Scanners and Printers. 497-501 2007 conf/iccta/2007 ICCTA http://doi.ieeecomputersociety.org/10.1109/ICCTA.2007.55 db/conf/iccta/iccta2007.html#GuptaSCM07