@ARTICLE {
	AUTHOR = "Gonzalo Navarro and Yakov Nekrich",
	TITLE ="Time-Optimal Top-k Document Retrieval",
	JOURNAL = "SIAM Journal on Computing (SICOMP)",
	VOLUME = "46",
	NUMBER = "1",
	PAGES = "89-113",
	YEAR = "2017",
	PUBLISHER = "SIAM Press",
	ADDRESS = "Philadelphia, USA",
	ISSN = "0097-5397"
	}