@article{lent_freitas_1938,  title={Pesquisas helminthologicas realisadas no Estado do Pará: VI. Acanthocephala},  volume={33},  ISSN={0074-0276},  url={https://doi.org/10.1590/S0074-02761938000400001},  DOI={10.1590/S0074-02761938000400001},  number={4},  journal={Memórias do Instituto Oswaldo Cruz},  publisher={Instituto Oswaldo Cruz, Ministério da Saúde},  author={Lent, Herman and Freitas, J. F. Teixeira de},  year={1938},  pages={455–459} }