Ronald V. Book, Matthias Jantzen, and Celia Wrathall.
Monadic Thue systems.
Theoretical Computer Science, 19:231-251, 1982.
@Article{Jantzen+82c,
AUTHOR = {Book, Ronald V. and Jantzen, Matthias and Wrathall, Celia},
PAGES = {231--251},
JOURNAL = {Theoretical Computer Science},
VOLUME = 19,
TITLE = {Monadic {Thue} systems},
YEAR = 1982,
ISSN = {}
}