References
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- Petrofsky J. S., Phillips C. A., Heaton H. H., Glaser R. M. Bicycle ergometer for paralysed muscle. Journal of Clinical Engineering 1984; 99: 13–19
- Mulder A. J., Van Bruggen T.A.M., Hermens H. J., Zilvold G. FES exercise equipment for the lower extremities. Proceedings of the 2nd Vienna International Workshop on FES. Vienna 1986; 95–98
- Laenger C. J., Hughes H., Burk T. Inexpensive FES synchronizer for leg-powered rotary devices. Proceedings of the 2nd Vienna International Workshop on FES. Vienna 1986; 329–332