Recent Developments in Implantable and Surface Based Dropped Foot Functional Electrical Stimulators. - Laurence P. J. Kenney; Paul Taylor; Geraldine Mann; Gerrit Bultstra; Hendrik Buschman; Hermie J. Hermens; Per J. Slycke; John Hobby; N. van der Aa; Ben W. Heller; A. Barker; David Howard; et al. (CLAWAR, 2005)