Yamada, K., Murakami, I., Ando, Y., Kobayashi, M., & Imai, Y. (2009). The Parameterization of All Disturbance Observers for Time-Delay Plants. ECTI Transactions on Electrical Engineering, Electronics, and Communications, 9(1), 40–48. https://doi.org/10.37936/ecti-eec.201191.172263