APA (7th ed.) Citation

Niu, R., Guo, Y., Wu, G., & Liu, J. Research on mechanical analysis and optimal design of electromagnetic variable pre-pressure ultrasonic motor. AIP Publishing LLC.

Chicago Style (17th ed.) Citation

Niu, Ruikun, Yong Guo, Guanqi Wu, and Jun Liu. Research on Mechanical Analysis and Optimal Design of Electromagnetic Variable Pre-pressure Ultrasonic Motor. AIP Publishing LLC.

MLA (9th ed.) Citation

Niu, Ruikun, et al. Research on Mechanical Analysis and Optimal Design of Electromagnetic Variable Pre-pressure Ultrasonic Motor. AIP Publishing LLC.

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