Cui, Longfei, Xinyu Xue, Wei Kong, Suming Ding, Wei Gu, and Feixiang Le. 2023. “Design and Implementation of a Nonlinear Robust Controller Based on the Disturbance Observer for the Active Spray Boom Suspension”. International Journal of Agricultural and Biological Engineering 16 (1):153-61. https://ijabe.migration.pkpps03.publicknowledgeproject.org/index.php/ijabe/article/view/7007.