Modeling, design, and optimization of Mindwalker series elastic joint. - Shiqian Wang; Cor Meijneke; Herman van der Kooij (ICORR, 2013)

Achilles: An autonomous lightweight ankle exoskeleton to provide push-off power. - Cor Meijneke; Wietse van Dijk; Herman van der Kooij (BioRob, 2014)