1. Ando,M., Verification of safety and convenience for person carrier robot, Journal of Robotics Society of Japan, Vol.33, No.8 (2015), pp.583–586 (in Japanese).
2. Buttfield-Addison,P., Manning,J. and Nugent,T., Unity game development cookbook: essentials for every game, O’Reilly Media (2019).
3. Carmigniani, J. and Furht, B., ed. by Furht, B., Augmented reality: an overview, handbook of augmented reality, Springer (2011), pp.3–46.
4. Cui,X. and Shi, H., An overview of pathfinding in navigation mesh, International Journal of Computer Science and Network Security, Vol.12, No.12 (2012).
5. Fujii,F. and Wada,K., Control system design for ’easy to manipulate’ electrically wheelchair, powered Transactions of the Japan Society of Mechanical Engineers, Series C, Vol.66, No.645 (2000), pp.229–235 (in Japanese).