1. S. Murata, et al. (1998) A 3-D self-reconfigurable structure, Proc. IEEE Int. Conf. on Robotics and Automation ,432–439.
2. H. Kurokawa, et al. (1998) A 3-D self-reconfigurable structure and experiments, IEEE/RSJ Int. Conf. on Intelligent Robots and Systems ,860–865.
3. G. Hamlin and A. Sanderson. (1998) Tetrobot: A modular approach to recon-figurable parallel robotics, Kluwer Academic Publishers, Boston.
4. K. Kotay, et al. (1998) The self-reconfiguring robotic molecule, Proc. IEEE Int. Conf. on Robotics and Automation ,424–431.
5. C. McGray and D. Rus. (1998) Self-reconfigurable molecule robots as 3D metamorphic robots, Proc. IEEE/RSJ Int. Conf. on Intelligent Robots and Systems ,837–842.