@inproceedings{SIGIR-1983-Maron,
	author        = "M. E. Maron",
	booktitle     = "{Proceedings of the Sixth Annual International ACM SIGIR Conference on Research and Development in Information Retrieval}",
	cdrom         = "SIGIR1983/P266.pdf",
	doi           = "10.1145/511793.511832",
	isbn          = "0-89791-107-5",
	pages         = "266--267",
	publisher     = "{ACM}",
	title         = "{Open Problems in Information Retrieval}",
	year          = 1983,
}