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MLA

Huawei Pi, et al. "Comparison of Measured and Simulated Friction Velocity and Threshold Friction Velocity Using Sweep." Soil science, v. 179 ,.8 pp. 393-402. doi: 10.1097/SS.0000000000000082

APA

Huawei Pi, H. Pi, Brenton Sharratt, B. Sharratt, Gary Feng, G. Feng, & Xiaoxiao Zhang, X. Zhang. (2014). Comparison of Measured and Simulated Friction Velocity and Threshold Friction Velocity Using SWEEP. Soil science, 179, 393-402. doi: 10.1097/SS.0000000000000082

Chicago

Huawei Pi, Brenton Sharratt, Gary Feng, and Xiaoxiao Zhang. "Comparison of Measured and Simulated Friction Velocity and Threshold Friction Velocity Using SWEEP" Soil science 179, no. 8 (2014): 393-402. doi: 10.1097/SS.0000000000000082