@inproceedings{SIGIR-1992-Nie,
	author        = "Jian-Yun Nie",
	booktitle     = "{Proceedings of the 15th International ACM SIGIR Conference on Research and Development in Information Retrieval}",
	cdrom         = "SIGIR1992/P140.pdf",
	doi           = "10.1145/133160.133188",
	isbn          = "0-89791-523-2",
	pages         = "140--151",
	publisher     = "{ACM}",
	title         = "{Towards a Probabilistic Modal Logic for Semantic-based Information Retrieval}",
	year          = 1992,
}