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Salomon, B., R. v. Bothmer & N. Jacobsen. 1991. Intergeneric crosses between Hordeum and North American Elymus (Poaceae, Triticeae). Hereditas (Lund) 114: 35–39.
Lu, B. r. & R. v. Bothmer. 1993. Meiotic analysis of Elymus caucasicus, E. longearistatus and their interspecific hybrids with twenty three Elymus species (Triticeae, Poaceae). Pl. Syst. Evol. 185: 35–53.
Salomon, B. & B. r. Lu. 1994. Genomic relationships between species of the Elymus semicostatus group and Elymus sensu lato (Poaceae). Pl. Syst. Evol. 191: 199–201.