Measurements of CO2 exchange over a woodland savanna (Cerrado Sensu stricto)in southeast Brasil - Rocha, Humberto Ribeiro da; Freitas, Hélber C; Rosolem, Rafael; Juárez, Robinson I N; Tannus, Rafael Nóra; Ligo, Marcos A; Cabral, Osvaldo M R; Silva Dias, Maria Assunção Faus da (Biota Neotropica, 2002)