@article{lara_siqueira_yuan_2018,  title={A Reduced Semidefinite Programming Formulation for HA Assignment Problems in Sport Scheduling},  volume={19},  ISSN={2179-8451},  url={https://doi.org/10.5540/tema.2018.019.03.0471},  DOI={10.5540/tema.2018.019.03.0471},  number={3},  journal={TEMA (São Carlos)},  publisher={Sociedade Brasileira de Matemática Aplicada e Computacional},  author={LARA, H. J. and SIQUEIRA, A.S. and YUAN, J.},  year={2018},  month={Sep},  pages={471–488} }