1. Alfred V. Aho, Margaret J. Corasick, ”Efficient String Matching: An Aid to Bibliographic Search”, Communications of the ACM, Vol.8, No.6, pp.333–340, June 1975
2. Jochen Burghardt, ”Mathematische Strukturen zur Musteridentifizierung auf mehrdimensionalen Zeichenfeldern” (”Mathematical Structures for Pattern Matching in Multi Dimensional Symbol Fields”), Thesis, September 1985
3. Jochen Burghardt, ”A New Tree Pattern Matching Algorithm”, Arbeitspapiere der GMD
4. David R. Chase, ”An Improvement to Bottom-up Tree Pattern Matching”, in: Conference Record of the 14th Annual ACM Symposium on Principles of Programming Languages, pp.168–177, January 1987
5. Christoph M. Hoffmann, Michael J. O'Donnell, ”Pattern Matching in Trees”, Journal of the ACM, Vol.29, No.1, pp.68–95, January 1982