@inproceedings{SIGIR-1989-Rijsbergen,
	author        = "C. J. van Rijsbergen",
	booktitle     = "{Proceedings of the 12th International ACM SIGIR Conference on Research and Development in Information Retrieval}",
	cdrom         = "SIGIR1988/P077.pdf",
	doi           = "10.1145/75334.75344",
	isbn          = "0-89791-321-3",
	pages         = "77--86",
	publisher     = "{ACM}",
	title         = "{Towards an Information Logic}",
	year          = 1989,
}