@inproceedings{SIGIR-2007-Seki,
	author        = "Yohei Seki",
	booktitle     = "{Proceedings of the 30th International ACM SIGIR Conference on Research and Development in Information Retrieval}",
	doi           = "10.1145/1277741.1277936",
	isbn          = "978-1-59593-597-7",
	pages         = "841--842",
	publisher     = "{ACM}",
	title         = "{Opinion holder extraction from author and authority viewpoints}",
	year          = 2007,
}