Herman Koppelman. Yellow and Red Cards to Deal with Hitchhiking in Groups. In Renzo Davoli, Michael Goldweber, Guido Rößling, Irene Polycarpou, editors, Proceedings of the 2017 ACM Conference on Innovation and Technology in Computer Science Education, ITiCSE 2017, Bologna, Italy, July 3-5, 2017. pages 377, ACM, 2017. [doi]
Abstract is missing.