@article{santos_2003,  title={Tempo de mudança},  volume={7},  ISSN={1413-8557},  url={https://doi.org/10.1590/S1413-85572003000200001},  DOI={10.1590/S1413-85572003000200001},  number={2},  journal={Psicologia Escolar e Educacional},  publisher={Associação Brasileira de Psicologia Escolar e Educacional (ABRAPEE)},  author={Santos, Acácia Aparecida Angeli dos},  year={2003},  month={Dec} }