Steve Benford Edmund K. Burke Eric Foxley Christopher A. Higgins The Ceilidh system for the automatic grading of students on programming courses. 176-182 1995 conf/ACMse/1995 ACM Southeast Regional Conference http://doi.acm.org/10.1145/1122018.1122050 db/conf/ACMse/ACMse1995.html#BenfordBFH95