J. Burge, и G. Gannod. Software Engineering Education and Training. Proceedings. 22nd Conference on, стр. 166--173. Los Alamitos, CA, IEEE Computer Society, (2009)https://doi.org/10.1109/CSEET.2009.37.
M. Mochol, и R. Tolksdorf. 9th Koli Calling: International Conference on Computing Education Research, стр. 31--34. Uppsala, Sweden, Uppsala University, (2009)