@article{kobe_2000,  title={Ernst Ising 1900-1998},  volume={30},  ISSN={0103-9733},  url={https://doi.org/10.1590/S0103-97332000000400003},  DOI={10.1590/S0103-97332000000400003},  number={4},  journal={Brazilian Journal of Physics},  publisher={Sociedade Brasileira de Física},  author={Kobe, S.},  year={2000},  month={Dec},  pages={649–654} }