Tutin (Rittener) 1971 - Heywood VH (1971) Flora Europaea: Notulae Systematicae ad Floram Europaeam spectantes: No. 11. Botanical Journal of the Linnean Society 64(4): 353-381. doi: 10.1111/j.1095-8339.1971.tb02152.x.
There is no corrections for Gentiana brachyphylla subsp. favratii yet.