@inproceedings{ITiCSE-2005-LahtinenAJ,
	author        = "Essi Lahtinen and Kirsti Ala-Mutka and Hannu-Matti Järvinen",
	booktitle     = "{Proceedings of the 10th Conference on Innovation and Technology in Computer Science Education}",
	doi           = "10.1145/1067445.1067453",
	isbn          = "1-59593-024-8",
	pages         = "14--18",
	publisher     = "{ACM}",
	title         = "{A study of the difficulties of novice programmers}",
	year          = 2005,
}