1. Detecting and clustering students by their gamification behavior with badges: A case study in engineering education;ruiperez-valiente;International Journal of Engineering Education,2017
2. Automatic grading programs
3. Constructed‐response, computer‐graded homework
4. Computer grading as an instructional tool;rottmann;Journal of College Science Teaching,1983
5. Kassandra: The automatic grading system;von matt;ACM Special Interest Group on Computer Uses in Education Outlook,2001