1. Kanji & Kana: Langenscheidts Lehrbuch und Lexikon der japanischen Schrift;Hadamitzky,1980
2. A Chinese Meta-Font;Hobby;TUGboat,1984
3. Metafont, Metamathematics, and Metaphysics;Hofstadter;Visible Language,1982
4. Constraint Simplification Rules;Frühwirth,1992