@article{columa_2007,  title={Como educar para a paz},  volume={11},  ISSN={1413-8557},  url={https://doi.org/10.1590/S1413-85572007000200023},  DOI={10.1590/S1413-85572007000200023},  number={2},  journal={Psicologia Escolar e Educacional},  publisher={Associação Brasileira de Psicologia Escolar e Educacional (ABRAPEE)},  author={Columa, Elizabeth dos Santos},  year={2007},  month={Dec},  pages={431–433} }