E. A. . Proaño Lapuerta, . I. . Iglesias Navarro, and L. M. Tobar SubiaContento, “Gripper with One Degree of Freedom for Prototiping of an Educational Robotic Arm ”, I+T+C Investig. Tecnol. Cienc., vol. 1, no. 11, pp. 19–28, Dec. 2017.