Portela, J. N., Pedreira, C. G. S. and Braga, G. J. (2011) “Demography and density of signalgrass tillers grazed under intermittent stock grazing”, Pesquisa Agropecuaria Brasileira, 46(3), pp. 315–322. doi: 10.1590/S1678-3921.pab2011.v46.9527.