1. 1) Terui, F.: Position and Attitude Control of a Spacecraft by Sliding Mode Control, Proceedings of American Control Conference, Jun. 1998, pp. 217–221.
2. 2) Kristiansen, R., Nicklasson, P., and Gravdahl, J.: Spacecraft Coordination Control in 6DOF: Integrator Backstepping vs Passivity-based Control, Automatica, 44 (2008), pp. 2896–2901.
3. 3) Shan, J.: Six-DOF Synchronised Adaptive Learning Control for Spacecraft Formation Flying, IET Control Theory Appl., 2 (2008), pp. 930–949.
4. 4) Xin, M. and Pan, H.: Integrated Nonlinear Optimal Control of Spacecraft in Proximity Operations, Int. J. Control, 83 (2010), pp. 347–363.
5. 5) Wang, J., Liang, H., Sun, Z., Zhang, S., and Liu, M.: Finite-time Control for Spacecraft Formation with Dual-number Based Description, J. Guid. Control Dynam., 35 (2012), pp. 950–962.