Guiotoku, Marcela, et al. “Molecular and Morphological Characterization of Hydrochar Produced by microwave‑assisted Hydrothermal Carbonization of Cellulose”. Pesquisa Agropecuária Brasileira, vol. 47, nº 5, junho de 2012, p. 687-92, doi:10.1590/S1678-3921.pab2012.v47.10003.