Daniel Kirsten, Karin Quaas. Recognizability of the support of recognizable series over the semiring of the integers is undecidable. Inf. Process. Lett., 111(10):500-502, 2011. [doi]
@article{KirstenQ11,
title = {Recognizability of the support of recognizable series over the semiring of the integers is undecidable},
author = {Daniel Kirsten and Karin Quaas},
year = {2011},
doi = {10.1016/j.ipl.2011.02.014},
url = {http://dx.doi.org/10.1016/j.ipl.2011.02.014},
researchr = {https://researchr.org/publication/KirstenQ11},
cites = {0},
citedby = {0},
journal = {Inf. Process. Lett.},
volume = {111},
number = {10},
pages = {500-502},
}