@article{breitman_leite_finkelstein_1999,  title={The world’s a stage: a survey on requirements engineering using a real-life case study},  volume={6},  ISSN={0104-6500},  url={https://doi.org/10.1590/S0104-65001999000200003},  DOI={10.1590/S0104-65001999000200003},  number={1},  journal={Journal of the Brazilian Computer Society},  publisher={Sociedade Brasileira de Computação},  author={Breitman, Karin Koogan and Leite, Julio Cesar S. do Prado and Finkelstein, Anthony},  year={1999},  month={Jul},  pages={13–37} }