Modelling Net Ecosystem CO2 Exchange by Simple Tropical Ecosystem Model. - Mariceia Tatiane Vilani; Mariele Pinheiro; Luciana Sanches Alves; Nara Luisa Reis de Andrade; Marcelo de Carvalho Alves; Jose de Souza Nogueira (J. Convergence Inf. Technol., 2010)