1. The growth range equivalence problem for D0L systems is decidable;Berstel,1976
2. Rational Series and Their Languages;Berstel,1988
3. Logic and p-recognizable sets of integers;Bruyère;Bull. Belg. Math. Soc. Simon Stevin,1994
4. On the decidability of some equivalence problems for L algebraic series;Honkala;Internat. J. Algebra Comput.,1997