Sakanushi, T., Yamada, K., Ando, Y., Nguyen, T.M. and Matsuura, S. 2010. A Design Method for Simple Multi-Period Repetitive Controllers for Multiple-Input/Multiple-Output Plants. ECTI Transactions on Electrical Engineering, Electronics, and Communications. 9, 1 (Jul. 2010), 202–211. DOI:https://doi.org/10.37936/ecti-eec.201191.172482.