Attitude tracking of a multivariable 3-DoF helicopter via decentralized repetitive control. - Edi Kurniawan; Daniel C. Saputra; Hendra G. Harno; Ronald Eric; Hendra Adinanta; Jalu A. Prakosa; Geetika Srivastava; Hai Wang 004 (J. Frankl. Inst., 2025)