He, J., Zhou, Y., Chen, K., Jianhua, H., Guan, H., Zhang, Y., & Liang, A. (2009). Service Differentiation in OFDM-Based IEEE 802.16 Networks. EURASIP Journal on Wireless Communications and Networking, 2009(1), p. 635304. doi:10.1155/2009/635304

He, Jianhua, Yi Zhou, Kai Chen, He Jianhua, Haibin Guan, Yan Zhang, and Alei Liang. "Service Differentiation in OFDM-Based IEEE 802.16 Networks." EURASIP Journal On Wireless Communications and Networking 2009, no. 1 (2009): 635304.

He, Jianhua, et al. "Service Differentiation in OFDM-Based IEEE 802.16 Networks." EURASIP Journal On Wireless Communications and Networking 2009.1 (2009): 635304.