@inproceedings{Langenbruch:2020VO, author = "Langenbruch, Christoph", title = "{Lepton flavour universality tests in rare $b\to s\ell\ell$ decays}", doi = "10.22323/1.377.0032", booktitle = "Proceedings of 18th International Conference on B-Physics at Frontier Machines {\textemdash} PoS(Beauty2019)", year = 2020, volume = "377", pages = "032" }