@article{Kühn:2019QG, author = "Kühn, Johann and Baikov, Pavel and Chetyrkin, Konstantin", title = "{Higgs-boson, tau-lepton, and Z-boson decay ratesin fourth order and the five-loop $β$ function of QCD}", doi = "10.22323/1.365.0007", journal = "PoS", year = 2019, volume = "ALPHAS2019", pages = "007" }