@article{soares neto_costa_1998,  title={Numerical Generation of Optimized Discrete Variable Representations},  volume={28},  ISSN={0103-9733},  url={https://doi.org/10.1590/S0103-97331998000100001},  DOI={10.1590/S0103-97331998000100001},  number={1},  journal={Brazilian Journal of Physics},  publisher={Sociedade Brasileira de Física},  author={Soares Neto, J. J. and Costa, L. S.},  year={1998},  month={Mar},  pages={1–11} }