@inproceedings{CHI-1991-KoenemannR,
	author        = "Jürgen Koenemann and Scott P. Robertson",
	booktitle     = "{Proceedings of the Ninth ACM SIGCHI Conference on Human Factors in Computing Systems}",
	doi           = "10.1145/108844.108863",
	isbn          = "0-89791-383-3",
	pages         = "125--130",
	publisher     = "{ACM}",
	title         = "{Expert problem solving strategies for program comprehension}",
	year          = 1991,
}