@article{kenkel_2013,  title={Five generations of peace operations: from the "thin blue line" to "painting a country blue"},  volume={56},  ISSN={0034-7329},  url={https://doi.org/10.1590/S0034-73292013000100007},  DOI={10.1590/S0034-73292013000100007},  number={1},  journal={Revista Brasileira de Política Internacional},  publisher={Centro de Estudos Globais da Universidade de Brasília},  author={Kenkel, Kai Michael},  year={2013},  pages={122–143} }