@article{Marquard:2019fZ, author = "Marquard, Peter and Blümlein, Johannes and Rana, Narayan and Schneider, Carsten", title = "{Heavy quark form factors at three loops}", doi = "10.22323/1.375.0013", journal = "PoS", year = 2019, volume = "RADCOR2019", pages = "013" }