@inproceedings{blackbox-retrospective,
 author = {Brown, Neil C. C. and Altadmri, Amjad and Sentance, Sue and K\"{o}lling, Michael},
 title = {Blackbox, Five Years On: An Evaluation of a Large-scale Programming Data Collection Project},
 booktitle = {Proceedings of the 2018 ACM Conference on International Computing Education Research},
 series = {ICER '18},
 year = {2018},
 pages = {196--204},
 url = {http://doi.acm.org/10.1145/3230977.3230991},
 doi = {10.1145/3230977.3230991},
}