Peng, J. H., and Y. Z. Liu. “Chaotic Attitude Motion of a Satellite on a Keplerian Elliptic Orbit”. Technische Mechanik - European Journal of Engineering Mechanics, vol. 20, no. 4, Oct. 2019, pp. 311-8, https://journals.ub.ovgu.de/index.php/techmech/article/view/1108.