@article{figueiredo_godoy_leite_2004,  title={Compensation temperature of the mixed-spin ising model on the hexagonal lattice},  volume={34},  ISSN={0103-9733},  url={https://doi.org/10.1590/S0103-97332004000300010},  DOI={10.1590/S0103-97332004000300010},  number={2a},  journal={Brazilian Journal of Physics},  publisher={Sociedade Brasileira de Física},  author={Figueiredo, W. and Godoy, M. and Leite, V. S.},  year={2004},  month={Jun},  pages={392–394} }