Dias-Filho, M.B., Wise, J.A. and Dawson, T.E. (1995) “Irradiance and water deficit effects on gas exchange behavior of two C3 Amazonian weeds”, Pesquisa Agropecuaria Brasileira, 30(3), pp. 319–325. doi:10.1590/S1678-3921.pab1995.v30.4310.