@article{lewis_knight_richards_1997,  title={A Laboratory-based Approach to Biological Control of Snails},  volume={92},  ISSN={0074-0276},  url={https://doi.org/10.1590/S0074-02761997000500019},  DOI={10.1590/S0074-02761997000500019},  number={5},  journal={Memórias do Instituto Oswaldo Cruz},  publisher={Instituto Oswaldo Cruz, Ministério da Saúde},  author={Lewis, Fred A and Knight, Matty and Richards, Charles S},  year={1997},  month={Sep},  pages={661–662} }