1. H. Wang, B. Salatin, G. Grindle, D. Ding, and R. Cooper, “Real-time model based electrical powered wheelchair control,” Medical Engineering & Physics, vol. 31, no. 10, pp. 1244–1254, 2009.
2. Y. Hirata, A. Hara, and K. Kosuge, “Motion control of passive intelligent walker using servo brakes,” IEEE Trans. on Robotics, vol. 23, no. 5, pp. 981–990, 2007.
3. B. W. Johnson and J. H. Aylor, “Dynamics modeling of an electric wheelchair,” IEEE Trans. on Industry Applications, vol. 21, no. 5, pp. 1284–1293, 1985.
4. J. H. Chung, B.-J. Yi, W. K. Kim, and S.-Y. Han, “Singularity-free dynamic modelling including wheel dynamics for an omni-directional mobile robot with three caster wheels,” International Journal of Control, Automation, and Systems, vol. 6, no. 1, pp. 86–100, 2008.
5. S. Kim and B. Moon, “Complete identification of isotropic configuration of a caster wheeled mobile robot with nonredundant/redundant actuation,” International Journal of Control, Automation, and Systems, vol. 4, no. 4, pp. 486–494, 2006.