Sotomayor-Ríos, A., Vélez-Fortuño, J., Woodbury, R., Schertz, K. F., & Sierra-Bracero, A. (1960). Description and Cytology of a Form of Signal Grass (Brachiaria brizantha Stapf.) and its Agronomic Behavior Compared to Guinea Grass (Panicum maximum Jack.). The Journal of Agriculture of the University of Puerto Rico, 44(4), 208–220. https://doi.org/10.46429/jaupr.v44i4.13809