S.Bräut. & Greuter (Tausch) 2007 - Bräutigam S, Greuter W (2007) A new treatment of Pilosella for the Euro-Mediterranean flora. Willdenowia 37: 123-137. doi: 10.3372/wi.37.37106.
There is no corrections for Pilosella cymosa subsp. vaillantii yet.