Yuqing Du, Nicholas J. Hetherington, Chu Lip Oon, Wesley P. Chan, Camilo Perez Quintero, Elizabeth Croft, H.F. Machiel Van der Loos:” Group Surfing: A Pedestrian-Based Approach to Sidewalk Robot Navigation”, 2019 International Conference on Robotics and Automation (ICRA), pp.6518-6524(2019)
つくばチャレンジ実行委員会, “つくばチャレンジ2019”, https://tsukubachallenge.jp/2019/ (Accessed in 2, November, 2020)