Development of a Collaborative Wheeled Mobile Robot: Design Considerations, Drive Unit Torque Control, and Preliminary Result. - Mehmet Can Yildirim; Mohamadreza Sabaghian; Thore Goll; Clemens Kössler; Christoph Jähne; Abdalla Swikir; Andriy Sarabakha; Sami Haddadin (ICRA, 2022)