Matthias Jantzen.
A note on a special one-rule semi-Thue system.
Information Processing Letters, 21:135-140, 1985.
@article{Jantzen85, Author = {Jantzen, Matthias}, Journal = {Information Processing Letters}, Pages = {135--140}, Title = {A note on a special one-rule semi-{Thue} system}, Volume = 21, Year = 1985 }