@article{díaz bulnes_oliveira_2001,  title={Construction of exact solutions for the Stern-Gerlach effect},  volume={31},  ISSN={0103-9733},  url={https://doi.org/10.1590/S0103-97332001000300023},  DOI={10.1590/S0103-97332001000300023},  number={3},  journal={Brazilian Journal of Physics},  publisher={Sociedade Brasileira de Física},  author={Díaz Bulnes, J. and Oliveira, I.S.},  year={2001},  month={Sep},  pages={488–495} }