@inproceedings{TOOLS-EUROPE-1994-Sikora,
	author        = "Hermann Sikora",
	booktitle     = "{Proceedings of the 13th International Conference on Technology of Object-Oriented Languages and Systems}",
	isbn          = "0-13-350539-1",
	pages         = "303--313",
	publisher     = "{Prentice Hall}",
	title         = "{Selected Results from an Empirical Study on Problem Areas and Trends of Object-Oriented Programming}",
	year          = 1994,
}