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Kumar, D. S., Kumar, R. ., Raja, K. ., Chhotaray, R. ., & Pattanaik, S. . (2010). Combined Off-Line Signature Verification Using Neural Networks. https://doi.org/10.1007/978-3-642-15766-0_99

Kumar, D. ., Raja, K. ., Nuthan, N. ., Sindhuja, B. ., Supriya, P. ., Chhotaray, R. ., & Pattnaik, S. . (2011). Iris recognition based on DWT and PCA. https://doi.org/10.1109/CICN.2011.102

Kumar, D. S., Kumar, K. ., Raja, K. ., Chhotaray, R. ., & Pattnaik, S. . (2010). Hybrid fingerprint matching using block filter and strength factors. https://doi.org/10.1109/ICCEA.2010.98