APA (7th ed.) Citation

Chang, C., & Sun, C. (2014). A Secure and Efficient Authentication Scheme for E-coupon Systems. Wireless Personal Communications, 77(4), 2981. https://doi.org/10.1007/s11277-014-1680-8

Chicago Style (17th ed.) Citation

Chang, Ching-Chun, and Chin-Yu Sun. "A Secure and Efficient Authentication Scheme for E-coupon Systems." Wireless Personal Communications 77, no. 4 (2014): 2981. https://doi.org/10.1007/s11277-014-1680-8.

MLA (9th ed.) Citation

Chang, Ching-Chun, and Chin-Yu Sun. "A Secure and Efficient Authentication Scheme for E-coupon Systems." Wireless Personal Communications, vol. 77, no. 4, 2014, p. 2981, https://doi.org/10.1007/s11277-014-1680-8.