Gao, Jianmin, Mazhar Hussian Tunio, Yiming Chen, and Rui He. 2020. “Design and Experiment of Low-Frequency Ultrasonic Nozzle Integrating Air-Assistant System and Acoustic Levitation Mechanism”. International Journal of Agricultural and Biological Engineering 13 (6):25-33. https://ijabe.migration.pkpps03.publicknowledgeproject.org/index.php/ijabe/article/view/5419.