B.Rong Lu & B.Salomon No year - Lu BR, Salomon B (1993) Two new Tibetan species of Elymus (Poaceae: niticeae) and their genomic relationships. Nordic Journal of Botany 13(4): 353-367. doi: 10.1111/j.1756-1051.1993.tb00062.x.
There is no corrections for Elymus cacuminus yet.