J.  Torabinejad, Carmen, J. G., and Crane, C. F., ?Morphology and genome analysis of interspecific hybrids of Elymus scaber?, Genome, vol. 29, pp. 150-155, 1987.

J. J.  Spies, H. Plessis, D., and Barker, N. P., ?Spies (1990)?, Genome, vol. 33, pp. 646-658, 1990.

S.  Assefa, ?Diversity among Cynodon accessions and taxa based on DNA amplification fingerprinting?, Genome, vol. 42, pp. 465-474, 1999.