D. Bell, T. Hall, J. Hannay, D. Pfahl, и S. Acuna. Proceedings of the 2010 Special Interest Group on Management Information System's 48th Annual Conference on Computer Personnel Research on Computer Personnel Research, стр. 43–47. New York, NY, ACM, (2010)https://doi.org/10.1145/1796900.1796921.
M. Johnstone, Z. Baig, P. Hannay, C. Carpene, и M. Feroze. IoT 360 (1), том 169 из Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering, стр. 16-26. (2015)