Alexander Meduna, Lukás Vrábel, Petr Zemek. Solutions to four open problems concerning controlled pure grammar systems. Int. J. Comput. Math., 91(6):1156-1169, 2014. [doi]
@article{MedunaVZ14,
title = {Solutions to four open problems concerning controlled pure grammar systems},
author = {Alexander Meduna and Lukás Vrábel and Petr Zemek},
year = {2014},
doi = {10.1080/00207160.2013.829214},
url = {http://dx.doi.org/10.1080/00207160.2013.829214},
researchr = {https://researchr.org/publication/MedunaVZ14},
cites = {0},
citedby = {0},
journal = {Int. J. Comput. Math.},
volume = {91},
number = {6},
pages = {1156-1169},
}