A 1-V, 1.4-2.5 GHz Charge-Pump-Less PLL for a Phase Interpolator Based CDR. - Jaejin Park; J. F. Liu; L. Richard Carley; C. Patrick Yue (CICC, 2007)

A force analysis of a 3-RPS parallel mechanism by using screw theory. - Y. Zhao; J. F. Liu; Z. Huang (Robotica, 2011)