@article{gonzalez-sprinberg_pan_2003,  title={On the monomial birational maps of the projective space},  volume={75},  ISSN={0001-3765},  url={https://doi.org/10.1590/S0001-37652003000200001},  DOI={10.1590/S0001-37652003000200001},  number={2},  journal={Anais da Academia Brasileira de Ciências},  publisher={Academia Brasileira de Ciências},  author={Gonzalez-Sprinberg, Gérard and Pan, Ivan},  year={2003},  month={Jun},  pages={129–134} }