References
- Shasha , D. and Zhang , K. 1997 . “ Approximate tree pattern matching ” . In Pattern Matching Algorithms , Edited by: Apostolico , A. and Galil , Z. Oxford : Oxford University Press . Chapter 14
- Myers , G. 1995 . Approximately matching context free languages . Information Processing Letters , 54 : 85 – 92 .
- Courcelle , B. 1989 . “ On recognizable sets and tree automata ” . In Resolution of Equations in Algebraic Structures , Edited by: Nivat , M. and Ait-Kaci , H. New York : Academic Press .
- Murata , M. “ Hedge automata: a formal model for XML schemata ” . Available online at: www.xml.gr.jp/relax/hedge_nice.html