@inproceedings{CHI-1994-HoudeS94a,
	author        = "Stephanie Houde and Royston Sellman",
	booktitle     = "{Proceedings of the 12th ACM SIGCHI Conference on Human Factors in Computing Systems}",
	doi           = "10.1145/191666.191810",
	isbn          = "0-89791-650-6",
	pages         = "424--430",
	publisher     = "{ACM}",
	title         = "{In search of design principles for programming environments}",
	year          = 1994,
}