Heeju Choi Lu, B., Choi, H., Buckner, G. D., & Tammi, K. (2008). Linear parameter-varying techniques for control of a magnetic bearing system. CONTROL ENGINEERING PRACTICE, 16(10), 1161–1172. https://doi.org/10.1016/j.conengprac.2008.01.002 Buckner, G. D., Choi, H., & Gibson, N. S. (2006). Estimating model uncertainty using confidence interval networks: Applications to robust control. JOURNAL OF DYNAMIC SYSTEMS MEASUREMENT AND CONTROL-TRANSACTIONS OF THE ASME, 128(3), 626–635. https://doi.org/10.1115/1.2199855