Fitzgerald Steele Jr., Geb Thomas. Directed stigmergy-based control for multi-robot systems. In Cynthia Breazeal, Alan C. Schultz, Terry Fong, Sara B. Kiesler, editors, Proceedings of the Second ACM SIGCHI/SIGART Conference on Human-Robot Interaction, HRI 2007, Arlington, Virginia, USA, March 10-12, 2007. pages 223-230, ACM, 2007. [doi]