Original FOCS 2000 paper, primary byline. Introduction and routing model: nonatomic routing, total latency and inefficiency bounds. This conference version is distinct from the later journal version.
Author-hosted paper dated 14 July 2015. Abstract and Introduction: smoothness arguments extend inefficiency bounds to broader equilibria and no-regret learning outcomes. Preliminary STOC version appeared in 2009; do not confuse manuscript date and first conference appearance.