@article {337, title = {39 fJ/bit On-Chip Identification of Wireless Sensors Based on Manufacturing Variation}, journal = {Journal of Low Power Electronics and Applications (JLPEA)}, volume = {4}, year = {2014}, month = {09/2014}, pages = {16}, chapter = {252}, author = {J.Bolus and B. H. Calhoun and T.Blalock} }