@incollection{Chen11, author = {Der Chin Chen}, title = {Portable Biometric System of High Sensitivity Absorption Detection}, booktitle = {Biometric Systems}, publisher = {IntechOpen}, address = {Rijeka}, year = {2011}, editor = {Zahid Riaz}, chapter = {12}, doi = {10.5772/21432}, url = {https://doi.org/10.5772/21432} }