@article{boisseau-2018-what, title={What you needa know about Yoneda: profunctor optics and the Yoneda lemma (functional pearl)}, volume={2}, ISSN={2475-1421}, url={http://dx.doi.org/10.1145/3236779}, DOI={10.1145/3236779}, number={ICFP}, journal={Proceedings of the ACM on Programming Languages}, publisher={Association for Computing Machinery (ACM)}, author={Boisseau, Guillaume and Gibbons, Jeremy}, year={2018}, month=July, pages={1–27} }