@article{wu_silva_márquez_2004,  title={The Douglas-peucker algorithm: sufficiency conditions for non-self-intersections},  volume={9},  ISSN={0104-6500},  url={https://doi.org/10.1590/S0104-65002004000100006},  DOI={10.1590/S0104-65002004000100006},  number={3},  journal={Journal of the Brazilian Computer Society},  publisher={Sociedade Brasileira de Computação},  author={Wu, Shin-Ting and Silva, Adler C. G. da and Márquez, Mercedes R. G.},  year={2004},  month={Apr},  pages={67–84} }