@article{cristóvão_ferenc_2007,  title={Synthesis and magnetic properties of heteronuclear 3d-4f compound},  volume={32},  ISSN={0100-4670},  url={https://doi.org/10.1590/S0100-46702007000300003},  DOI={10.1590/S0100-46702007000300003},  number={3},  journal={Eclética Química},  publisher={Fundação Editora da Universidade Estadual Paulista Júlio de Mesquita Filho - UNESP},  author={Cristóvão, B. and Ferenc, W.},  year={2007},  pages={19–23} }