If you need to cite this article, here is a bibtex:
@article{OuvryPolychronakos23,
author = {Ouvry, St{\'e}phane and Polychronakos, Alexios P.},
title = {Signed area enumeration for lattice walks},
fjournal = {S{\'e}minaire Lotharingien de Combinatoire},
journal = {S{\'e}min. Lothar. Combin.},
issn={1286-4889},
volume = {87B},
number= {4},
pages = {1--13},
year = {2023},
language = {English},
doi={10.48550/arXiv.2110.09394},
}