@article{su_silva neto_2001,  title={Heat Source Estimation with the Conjugate Gradient Method in Inverse Linear Diffusive Problems},  volume={23},  ISSN={0100-7386},  url={https://doi.org/10.1590/S0100-73862001000300005},  DOI={10.1590/S0100-73862001000300005},  number={3},  journal={Journal of the Brazilian Society of Mechanical Sciences},  publisher={The Brazilian Society of Mechanical Sciences},  author={Su, Jian and Silva Neto, Antônio J.},  year={2001},  pages={321–334} }