@article{stubbs_2011,  title={The development of a constructivist socio cultural model of professional development from 1970s to 2011},  ISSN={0104-4060},  url={https://doi.org/10.1590/S0104-40602011000200008},  DOI={10.1590/S0104-40602011000200008},  number={40},  journal={Educar em Revista},  publisher={Setor de Educação da Universidade Federal do Paraná},  author={Stubbs, Harriett S.},  year={2011},  month={Apr},  pages={107–123} }