@article{guerra_1994,  title={EARTHWORM ACTIVITY IN FOREST AND SAVANNA SOILS NEAR BOA VISTA, RORAIMA, BRAZIL},  volume={24},  ISSN={0044-5967},  url={https://doi.org/10.1590/1809-43921994243308},  DOI={10.1590/1809-43921994243308},  number={3-4},  journal={Acta Amazonica},  publisher={Instituto Nacional de Pesquisas da Amazônia},  author={GUERRA, Rafael Torquemada},  year={1994},  pages={303–307} }