Julia Geerts Jan de Wit Alwin de Rooij Brainstorming With a Social Robot Facilitator: Better Than Human Facilitation Due to Reduced Evaluation Apprehension? 657291 2021 8 Frontiers Robotics AI https://doi.org/10.3389/frobt.2021.657291 db/journals/firai/firai8.html#GeertsWR21