1. B.J. Andrews, and T Bajd .,Hybrid orthosis for paraplegics, in Advances in External Control of Human Extremities, Popović , D.B., Ed .Yugoslav Committee for ETAN (Suppl.),Belgrade,1984 , pp.55 -57 .
2. Hybrid FES orthosis incorporating closed loop control and sensory feedback
3. Testing and modelling of spasticity
4. Standing-up of a healthy subject and a paraplegic patient