@article{VTOSS10, author = {Evgeny A. Verbitskiy and Pim Tuyls and Chibuzo Obi and Berry Schoenmakers and Boris \v{S}kori\'{c}}, title = {Key extraction from general nondiscrete signals}, journal = {IEEE Transactions on Information Forensics and Security}, volume = {5}, number = {2}, year = {2010}, pages = {269--279} }