@article{DBLP:journals/trob/KongG04,
author = {Xianwen Kong and
Cl{\'e}ment M. Gosselin},
title = {Type synthesis of 3T1R 4-DOF parallel manipulators based
on screw theory},
journal = {IEEE Transactions on Robotics},
volume = {20},
number = {2},
year = {2004},
pages = {181-190},
ee = {http://dx.doi.org/10.1109/TRA.2003.820853},
bibsource = {DBLP, http://dblp.uni-trier.de}
}