Rosa, B. and Borges, A.J.S. (2007) “AVALIATION OF THE BEST AGE FOR HAYMAKING OF GRASS ANDROPOGON (Andropogon gayanus var. bisquamulatus cv. Planaltina): CHEMICAL COMPOSITION”, Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics], 20(1), pp. 65–72. doi:10.5216/pat.v20i1.2595.