Matthias Jantzen, Manfred Kudlek. Homomorphic Images of Sentential Form Languages Defined by Semi-Thue Systems. Theoretical Computer Science, 33:13-43, 1984.
@article{JantzenK84, title = {Homomorphic Images of Sentential Form Languages Defined by Semi-Thue Systems}, author = {Matthias Jantzen and Manfred Kudlek}, year = {1984}, researchr = {https://researchr.org/publication/JantzenK84}, cites = {0}, citedby = {0}, journal = {Theoretical Computer Science}, volume = {33}, pages = {13-43}, }