Jean Berstel. Every Iterated Morphism Yields a co-CFL. Inf. Process. Lett., 22(1):7-9, 1986.
@article{Berstel86, title = {Every Iterated Morphism Yields a co-CFL}, author = {Jean Berstel}, year = {1986}, researchr = {https://researchr.org/publication/Berstel86}, cites = {0}, citedby = {0}, journal = {Inf. Process. Lett.}, volume = {22}, number = {1}, pages = {7-9}, }