@article{ising_2000, title={Letter}, volume={30}, ISSN={0103-9733}, url={https://doi.org/10.1590/S0103-97332000000400002}, DOI={10.1590/S0103-97332000000400002}, number={4}, journal={Brazilian Journal of Physics}, publisher={Sociedade Brasileira de Física}, author={Ising, Jane}, year={2000}, month={Dec}, pages={648–648} }