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IEEE Transactions on Circuits and Systems I: Regular Papers > 2013 > 60 > 9 > 2241 - 2248
IEEE Journal of Solid-State Circuits > 2011 > 46 > 7 > 1544 - 1552
IEEE Journal of Solid-State Circuits > 2010 > 45 > 1 > 224 - 234
IEEE Sensors Journal > 2008 > 8 > 7 > 1292 - 1298