Andrzej Szepietowski. On three-way two-dimensional multicounter automata. Inf. Sci., 55(1-3):35-47, 1991. [doi]
@article{Szepietowski91,
title = {On three-way two-dimensional multicounter automata},
author = {Andrzej Szepietowski},
year = {1991},
doi = {10.1016/0020-0255(91)90004-E},
url = {http://dx.doi.org/10.1016/0020-0255(91)90004-E},
researchr = {https://researchr.org/publication/Szepietowski91},
cites = {0},
citedby = {0},
journal = {Inf. Sci.},
volume = {55},
number = {1-3},
pages = {35-47},
}