Emanuel A. Schegloff:  "Discourse as an 
Interactional Achievement II:  An Exercise 
in Conversation Analysis," in D. Tannen (ed.), 
Linguistics in Context: Connecting Observation 
and Understanding: Lectures from the 1985
LSA/TESOL and NEH Institutes (Norwood, NJ: 
Ablex, 1988), 135-158.