Analysis of a manipulator in relation to collision between a link and an object
Artificial Life and Robotics (2011) - Comments
doi: 10.1007/s10015-011-0911-2  issn: 1433-5298  issn: 1614-7456 

Asaji Sato, Osamu Sato, Nobuya Takahashi, Masahiro Yokomichi