Ziehr, Robert D., Gary L. Rea, Joel L. Douglas, Kenneth E. Spaeth, George L. Peacock, and James P. Muir. 2014. “Ontogenesis and Nutritive Value of Warm-Season Perennial Bunch Grasses”. Tropical Grasslands-Forrajes Tropicales 2 (2):188-96. https://doi.org/10.17138/tgft(2)188-196.