Denis Béchet, Alexandre Ja. Dikovsky, Annie Foret. Categorial grammars with iterated types form a strict hierarchy of k-valued languages. Theoretical Computer Science, 450:22-30, 2012. [doi]
@article{BechetDF12,
title = {Categorial grammars with iterated types form a strict hierarchy of k-valued languages},
author = {Denis Béchet and Alexandre Ja. Dikovsky and Annie Foret},
year = {2012},
doi = {10.1016/j.tcs.2012.04.024},
url = {http://dx.doi.org/10.1016/j.tcs.2012.04.024},
researchr = {https://researchr.org/publication/BechetDF12},
cites = {0},
citedby = {0},
journal = {Theoretical Computer Science},
volume = {450},
pages = {22-30},
}