@article{travassos_darriba_1930,  title={Pesquizas helminthologicas realisadas em Hamburgo: III. Trematodeos dos generos Pneumonoeces e Ostiolum},  volume={23},  ISSN={0074-0276},  url={https://doi.org/10.1590/S0074-02761930000500002},  DOI={10.1590/S0074-02761930000500002},  number={5},  journal={Memórias do Instituto Oswaldo Cruz},  publisher={Instituto Oswaldo Cruz, Ministério da Saúde},  author={Travassos, Lauro and Darriba, Antonio R.},  year={1930},  month={Jun},  pages={237–253} }