TY - Front. Mech. Eng. A1 - Soheil ZARKANDI T1 - On the location of the secondary instantaneous poles in two-degree-of-freedom spherical mechanisms Y1 - 2014-03-05 JF - Frontiers of Mechanical Engineering JO - Front. Mech. Eng. SP - 34 EP - 40 VL - 9 IS - 1 UR - https://journal.hep.com.cn/fme N1 - 10.1007/s11465-014-0290-1 ER -