Modeling of Inverse Kinematic of 3-DoF Robot, Using Unit Quaternions and Artificial Neural Network. - Eusebio Jiménez López; Daniel Servín De La Mora-Pulido; Luis Alfonso Reyes-Ávila; Raúl Servín De La Mora-Pulido; Javier Melendez-Campos; Aldo Augusto López-Martínez (Robotica, 2021)