If you need to cite this article, here is a bibtex:
@article{Dreyfus23,
author = {Dreyfus, Thomas},
title = {Differential algebraic generating functions of walks in the quarter plane},
fjournal = {S{\'e}minaire Lotharingien de Combinatoire},
journal = {S{\'e}min. Lothar. Combin.},
issn={1286-4889},
volume = {87B},
number= {10},
pages = {1--23},
year = {2023},
language = {English},
doi={10.48550/arXiv.2104.05505},
}