Design of a fully-passive transfemoral prosthesis prototype. - S. M. Behrens; Ramazan Unal; Edsko E. G. Hekman; Raffaella Carloni; Stefano Stramigioli; H. F. J. M. Koopman (EMBC, 2011)

Modeling of WalkMECH: A fully-passive energy-efficient transfemoral prosthesis prototype. - Ramazan Unal; F. Klijnstra; B. Burkink; S. M. Behrens; Edsko E. G. Hekman; Stefano Stramigioli; H. F. J. M. Koopman; Raffaella Carloni (ICORR, 2013)

The control of recycling energy strorage capacity for WalkMECHadapt. - Ramazan Unal; F. Klijnstra; S. M. Behrens; Edsko E. G. Hekman; Stefano Stramigioli; H. F. J. M. Koopman; Raffaella Carloni (RO-MAN, 2014)