APA (7th ed.) Citation

Parkinson, S., Khan, S., Crampton, A., Xu, Q., Xie, W., Liu, N., & Dakin, K. Password policy characteristics and keystroke biometric authentication. Wiley.

Chicago Style (17th ed.) Citation

Parkinson, Simon, Saad Khan, Andrew Crampton, Qing Xu, Weizhi Xie, Na Liu, and Kyle Dakin. Password Policy Characteristics and Keystroke Biometric Authentication. Wiley.

MLA (9th ed.) Citation

Parkinson, Simon, et al. Password Policy Characteristics and Keystroke Biometric Authentication. Wiley.

Warning: These citations may not always be 100% accurate.