Pfreundschun G H;Khmer V;Thomas G S,Design and control of a 3 DOF in-parallel actuated manipulator,1991.
[2]
Hashimoto Minoru;Imamura Yuichi,Kinematic analysis and design of a 3 DOF parallel mechanism for a passive compliant wrist of manipulators,Transactions of the Japan Society of Mechanical Engineers,1998.
Warldron K J;Raghavan M;Roth B,Kinematics of a hybrid series-parallel manipulation system,ASME Journal of Dynamic Systems,Measurement,and Control,1989(02).
[7]
Lee K;Shah K D,Kinematic analysis of a three degrees of freedom in-parallel actuated manipulator,International Journal of Robotics & Automation,1988(03).