@inproceedings{INTERCHI-1993-FixWS,
	author        = "Vikki Fix and Susan Wiedenbeck and Jean Scholtz",
	booktitle     = "{Proceedings of the 11th ACM SIGCHI Conference on Human Factors in Computing Systems, jointly organised with the IFIP TC13 International Conference on Human-Computer Interaction}",
	doi           = "10.1145/169059.169088",
	isbn          = "0-89791-575-5",
	pages         = "74--79",
	publisher     = "{ACM}",
	title         = "{Mental representations of programs by novices and experts}",
	year          = 1993,
}