@article{leser_asenjo_1994,  title={Protein recovery, separation and purification: selection of optimal techniques using an expert system},  volume={89},  ISSN={0074-0276},  url={https://doi.org/10.1590/S0074-02761994000100017},  DOI={10.1590/S0074-02761994000100017},  number={1},  journal={Memórias do Instituto Oswaldo Cruz},  publisher={Instituto Oswaldo Cruz, Ministério da Saúde},  author={Leser, Eduardo W. and Asenjo, Juan A.},  year={1994},  month={Jan},  pages={99–109} }