Ken Sugawara. Object Transportation by Swarm Robots Based on Constraint Granular Convection. In Nikolaus Correll, Mac Schwager, Michael W. Otte, editors, Distributed Autonomous Robotic Systems, The 14th International Symposium, DARS 2018, Boulder, CO, USA, October 15-17, 2018. Volume 9 of Springer Proceedings in Advanced Robotics, pages 329-340, Springer, 2018. [doi]