G.L.Chu & M.G.Gilbert (A.DC.) 1995 - Ge-Lin C, Kamelin R, Mill RR, Gilbert MG (1995) Nomenclatural Notes on the Boraginaceae of China. Novon 5(1): 17. doi: 10.2307/3391821.
There is no corrections for Tournefortia sibirica var. angustior yet.