@book{Bruce Schneier_2003, address={New York}, title={Beyond fear}, publisher={Copernicus Books}, author={Bruce Schneier}, year={2003} }
@book{Cranor_Garfinkel_2005, address={Sebastopol, Calif}, title={Security and usability: designing secure systems that people can use}, url={http://www.vlebooks.com/vleweb/product/openreader?id=UCL&isbn=9780596514891}, publisher={O’Reilly}, author={Cranor, Lorrie Faith and Garfinkel, Simson}, year={2005} }