@inproceedings{SIGIR-2000-Vakkari,
	author        = "Pertti Vakkari",
	booktitle     = "{Proceedings of the 23rd International ACM SIGIR Conference on Research and Development in Information Retrieval}",
	doi           = "10.1145/345508.345512",
	isbn          = "1-58113-226-3",
	pages         = "2--9",
	publisher     = "{ACM}",
	title         = "{Relevance and contributing information types of searched documents in task performance}",
	year          = 2000,
}