Paulo Sérgio Pereira da Silva, F. S. Freitas, P. R. Yanyachi Aco-Cardenas. Flat systems, flat information and an application to attitude control. In 5th European Control Conference, ECC 1999, Karlsruhe, Germany, August 31 - September 3, 1999. pages 3202-3207, IEEE, 1999. [doi]
Abstract is missing.