On the equality sets for homomorphisms on free monoids with two generators K. Culik II; J. Karhumäki — 1980 RAIRO - Theoretical Informatics and Applications - Informatique Théorique et Applications
On simple representations of language families K. Culik II; H. A. Maurer — 1979 RAIRO - Theoretical Informatics and Applications - Informatique Théorique et Applications
On real time and linear time cellular automata W. Bucher; K. Culik II — 1984 RAIRO - Theoretical Informatics and Applications - Informatique Théorique et Applications