We have information from several sources:
African GrassesGlenn W. Burton
Magness, J.R., G.M. Markle, C.C. Compton. 1971. Food and feed crops of the United States.
Doob (Cynodon dactylon): Traditional Medicinal Uses in IndiaPankaj Oudhia
Handbook of Energy CropsJames A. Duke. 1983. unpublished.