Heywood VH (1973) Flora Europaea: Notulae Systematicae ad Floram Europaeam spectantes. No. 14. Botanical Journal of the Linnean Society 67(3): 275-283. doi: 10.1111/j.1095-8339.1973.tb01742.x.
There is no corrections for Jasione crispa subsp. amethystina yet.