@article{vetter_1988,  title={Colorimetria aplicada em pesquisa de madeira},  volume={18},  ISSN={0044-5967},  url={https://doi.org/10.1590/1809-43921988182188},  DOI={10.1590/1809-43921988182188},  number={1-2},  journal={Acta Amazonica},  publisher={Instituto Nacional de Pesquisas da Amazônia},  author={Vetter, Roland E.},  year={1988},  month={Mar},  pages={179–188} }