1) D. Ding, R. A. Cooper, A. B. Kaminski, J. R. Kanaly, A. Allegretti, E. Chaves, S. Hubbard, Integrated control and related technology of assistive devices. Assist Technol. 2003; 15(2): 89-97
2) R. C. Simpson, S. P. Levine, Voice control of a powered wheelchair. IEEE Trans Neural Syst. Rehabil. Eng. 2002; 10(2): 122-125
3) P. Nisbet, Integrating assistive technologies. Current practices and future possibilities. Med. Eng. Phys. 1996; 18(3): 193-202
4) S. Chen, Y. Chen, T. Kuo, C. Chu, C. Hung, M3S-based electrical wheelchair with head-controlled device. Conf. Proc. IEEE Eng. Med. Biol. Soc. 2006; 1: 4917-4920
5) D. A. Craig, H. T. Nguyen, Adaptive EEG thought pattern classifier for advanced wheelchair control. Conf. Proc. IEEE Eng. Med. Biol. Soc. 2007; 2544-2547