@article{francisco_martini_2014,  title={Spectral projected gradient method for the procrustes problem},  volume={15},  ISSN={2179-8451},  url={https://doi.org/10.5540/tema.2014.015.01.0083},  DOI={10.5540/tema.2014.015.01.0083},  number={1},  journal={TEMA (São Carlos)},  publisher={Sociedade Brasileira de Matemática Aplicada e Computacional},  author={Francisco, J.B. and Martini, T.},  year={2014},  month={Jan},  pages={83–96} }