APA (7th ed.) Citation

Pathan, A. K., & Hong, C. S. (2007). An improved timestamp-based password authentication scheme with two-party verification using smart cards.

Chicago Style (17th ed.) Citation

Pathan, Al-Sakib Khan, and Choong Seon Hong. An Improved Timestamp-based Password Authentication Scheme with Two-party Verification Using Smart Cards. 2007.

MLA (8th ed.) Citation

Pathan, Al-Sakib Khan, and Choong Seon Hong. An Improved Timestamp-based Password Authentication Scheme with Two-party Verification Using Smart Cards. 2007.

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