Todd A. Proebsting. BURG, IBURG, WBURG, GBURG: so many trees to rewrite, so little time ::::(invited talk)::::. In Bernd Fischer, Eelco Visser, editors, Proceedings of the 2002 ACM SIGPLAN Workshop on Rule-Based Programming, Pittsburgh, Pennsylvania, USA, 2002. pages 53-54, ACM, 2002. [doi]