Recurrent Neural Network-Based Robust Nonsingular Sliding Mode Control With Input Saturation for a Non-Holonomic Spherical Robot. - Shu-Bo Chen; Alireza Beigi; Amin Yousefpour; Farhad Rajaee; Hadi Jahanshahi; Stelios D. Bekiros; Raúl Alcaraz Martínez; Yuming Chu (IEEE Access, 2020)