Mojmír Kretínský, Vojtech Rehák, Jan Strejcek. Petri nets are less expressive than state-extended PA. Theoretical Computer Science, 394(1-2):134-140, 2008. [doi]
@article{KretinskyRS08,
title = {Petri nets are less expressive than state-extended PA},
author = {Mojmír Kretínský and Vojtech Rehák and Jan Strejcek},
year = {2008},
doi = {10.1016/j.tcs.2007.12.003},
url = {http://dx.doi.org/10.1016/j.tcs.2007.12.003},
researchr = {https://researchr.org/publication/KretinskyRS08},
cites = {0},
citedby = {0},
journal = {Theoretical Computer Science},
volume = {394},
number = {1-2},
pages = {134-140},
}