@article{articleb42740a5, title = {14C dating and stable carbon isotopes of soil organic matter in forest–savanna boundary areas in the southern Brazilian Amazon region}, author = {Pessenda, Luiz Carlos Ruiz and Gouveia, Susy Eli Marques and Aravena, Ramon and Gomes, B. M and Boulet, Renné Georges Leon and Ribeiro, A. S}, year = {1998}, journal = {Radiocarbon} }