@article {刘畅2007综合搜索引擎与垂直搜索引擎的比较研究,
	title = {综合搜索引擎与垂直搜索引擎的比较研究},
	journal = {情报科学},
	volume = {25},
	number = {1},
	year = {2007},
	pages = {97{\textendash}102},
	author = {刘畅}
}
