@inproceedings{ICSE-2005-EbertM,
	author        = "Christof Ebert and Jozef De Man",
	booktitle     = "{Proceedings of the 27th International Conference on Software Engineering}",
	doi           = "10.1145/1062455.1062554",
	editor        = "Gruia-Catalin Roman and William G. Griswold and Bashar Nuseibeh",
	pages         = "553--560",
	publisher     = "{ACM}",
	title         = "{Requirements Uncertainty: Influencing Factors and Concrete Improvements}",
	year          = 2005,
}