@ARTICLE{Button-Casey1985, author = "Graham Button and Neil Casey", doi = "10.1007/BF00143022", keywords = "EMCA, Topic", journal = "Human Studies", number = "1", pages = "3–55", title = "Topic nomination and pursuit", url = "http://link.springer.com/article/10.1007/BF00143022", volume = "8", year = "1985", }