@article{andrade_rêgo_2019,  title={CENTRALITY METRICS AND GRADUATE PROGRAM EVOLUTION: THE CASE OF PRODUCTION ENGINEERING GRADUATE PROGRAMS IN BRAZIL},  volume={39},  ISSN={0101-7438},  url={https://doi.org/10.1590/0101-7438.2019.039.03.0405},  DOI={10.1590/0101-7438.2019.039.03.0405},  number={3},  journal={Pesquisa Operacional},  publisher={Sociedade Brasileira de Pesquisa Operacional},  author={Andrade, Ricardo Lopes de and Rêgo, Leandro Chaves},  year={2019},  month={Sep},  pages={405–436} }