NOV
De Nederlandse Orthopedische Vereniging (NOV) is de wetenschappelijke vereniging van orthopedisch chirurgen in Nederland
Herder J.L., Tuijthof G.J.M., Balancing mechanism to hold object in required vertical position involves use of parallelogram or hinged arms and two tensioned springs, NL1009886 C
Herder J.L., Tuijthof G.J.M., Two spatial equilibrators. In: CDROMS Proceedings ASME DETC 26th Biennial Mechanisms and Robotics Conference, Baltimore, Maryland, Sept 10-13 2000. number DETC2000/MECH-14120
Tuijthof G.J.M., Herder J.L. Design, actuation and control of an anthropomorphic robot arm. Mechanism Machine Theory 35(7) 945-962, 2000