@article{fiore-2022-formal, title={Formal metatheory of second-order abstract syntax}, volume={6}, ISSN={2475-1421}, url={http://dx.doi.org/10.1145/3498715}, DOI={10.1145/3498715}, number={POPL}, journal={Proceedings of the ACM on Programming Languages}, publisher={Association for Computing Machinery (ACM)}, author={Fiore, Marcelo and Szamozvancev, Dmitrij}, year={2022}, month=Jan, pages={1–29} }