@article{zeng_du_ren_zhao_2013,  title={Design and implementation of a web interactive thematic cartography method based on a web service chain},  volume={19},  ISSN={1982-2170},  url={https://doi.org/10.1590/S1982-21702013000200002},  DOI={10.1590/S1982-21702013000200002},  number={2},  journal={Boletim de Ciências Geodésicas},  publisher={Universidade Federal do Paraná},  author={Zeng, Xingguo and Du, Qingyun and Ren, Fu and Zhao, Fei},  year={2013},  month={Apr},  pages={172–190} }