Ying-Han Pang Andrew Teoh Beng Jin David Ngo Chek Ling Two-Factor Cancelable Biometrics Authenticator. 54-59 2007 22 J. Comput. Sci. Technol. 1 http://dx.doi.org/10.1007/s11390-007-9006-x db/journals/jcst/jcst22.html#PangJL07