@article{walker_1982, title={The thecamoebae (Protozoa, Rhizopoda) of small Amazonian forest streams and their possible use as indicator organisms for waterquality }, volume={12}, ISSN={0044-5967}, url={https://doi.org/10.1590/1809-43921982123S079}, DOI={10.1590/1809-43921982123S079}, journal={Acta Amazonica}, publisher={Instituto Nacional de Pesquisas da Amazônia}, author={Walker, Ilse}, year={1982}, pages={79–86} }