@article{christiansen_romero_orellana_2007,  title={High-energy gamma-ray production in microquasars},  volume={37},  ISSN={0103-9733},  url={https://doi.org/10.1590/S0103-97332007000400012},  DOI={10.1590/S0103-97332007000400012},  number={2b},  journal={Brazilian Journal of Physics},  publisher={Sociedade Brasileira de Física},  author={Christiansen, Hugo R. and Romero, Gustavo E. and Orellana, Mariana},  year={2007},  month={Jul},  pages={545–548} }