L. M.  Giussani, Cota-Sanchez, H., Zuloaga, F. O., and Kellogg, E. A., ?A molecular phylogeny of the subfamily Panicoideae (Poaceae) shows multiple origins of C4 photosynthesis?, American Journal of Botany, vol. 88, pp. 1993-2012, 2001.

H.  Duistermaat, ?Duistermaat (2004)?, Gardens' Bulletin Singapore, vol. 56, pp. 29-42, 2004.

S. R.  Baquar and Saeed, M., ?Chromosome studies and polyploid analysis in grasses of West Pakistan. I?, Caryologia, vol. 22, pp. 103-111, 1969.