1. The growth range equivalence problem for D0L systems is decidable;Berstel,1976
2. Rational Series and Their Languages;Berstel,1988
3. The decidability of the equivalence problem for D0L-systems;Culik II;Inform. and Control,1977
4. A new proof for the D0L sequence equivalence problem and its implications;Culik II,1986
5. Elementary homomorphisms and a solution of the D0L sequence equivalence problem;Ehrenfeucht;Theoret. Comput. Sci.,1978