@article{matthiessen_2012,  title={Systemic Functional Linguistics as appliable linguistics: social accountability and critical approaches},  volume={28},  ISSN={0102-4450},  url={https://doi.org/10.1590/S0102-44502012000300002},  DOI={10.1590/S0102-44502012000300002},  number={spe},  journal={DELTA: Documentação de Estudos em Lingüística Teórica e Aplicada},  publisher={Pontifícia Universidade Católica de São Paulo - PUC-SP},  author={Matthiessen, Christian M.I.M.},  year={2012},  pages={435–471} }