@article{rego_gibson_1989,  title={Hyperparasitism by helminths: new records of cestodes and nematodes in proteocephalid cestodes from South American siluriform fishes},  volume={84},  ISSN={0074-0276},  url={https://doi.org/10.1590/S0074-02761989000300012},  DOI={10.1590/S0074-02761989000300012},  number={3},  journal={Memórias do Instituto Oswaldo Cruz},  publisher={Instituto Oswaldo Cruz, Ministério da Saúde},  author={Rego, Amilcar Arandas and Gibson, David I.},  year={1989},  month={Jul},  pages={371–376} }