@article{article776da033,
title   = {13C NMR and FTIR spectroscopy characterization of humic acids in spodosols under tropical rain forest in southeastern Brazil},
author = {González-Pérez, Martha and Vidal Torrado, Pablo and Colnago, Luiz Alberto and Martins-Neto, Ladislau and Otero, Xosé Lois and Milori, Debora Marcondes Bastos Pereira and Gomes, Felipe Haenel},
year = {2008},
doi = {10.1016/j.geoderma.2008.06.018},
journal   = {Geoderma}
}