Russell, D. R. (1997). Rethinking genre in school and society: An
activity theory analysis. Written Communication, 14, 504-554.
David synthesizes Engestrom's systems version of CHAT with Bazerman's
theory of genre systems to pose a framework for studying writing across
institutions. A good companion piece to the latest MCA edited by Russell
and Bazerman, which I hope to read before long.
Peter