D. Hovemeyer, A. Hellas, A. Petersen, and J. Spacco. Proceedings of the 2016 ACM Conference on International Computing Education Research, page 63--72. New York, NY, USA, ACM, (2016)
D. Hovemeyer, A. Hellas, A. Petersen, and J. Spacco. Proceedings of the 2017 ACM SIGCSE Technical Symposium on Computer Science Education, page 709. New York, NY, USA, ACM, (2017)
D. Hovemeyer, A. Hellas, A. Petersen, and J. Spacco. Proceedings of the 2017 ACM SIGCSE Technical Symposium on Computer Science Education, page 709. New York, NY, USA, ACM, (2017)
D. Hovemeyer, A. Hellas, A. Petersen, and J. Spacco. Proceedings of the 2016 ACM Conference on International Computing Education Research, page 63--72. New York, NY, USA, ACM, (2016)