@article {IOPORT.50278280,
    author       = {Yang, Ling and Zhang, Liqiang and Ma, Jingtao and Kang, Zhizhong and Zhang, Lixin and Li, Jonathan},
    title        = {Efficient simplification of large vector maps rendered onto 3D landscapes},
    year         = {2011},
    journal      = {IEEE Computer Graphics and Applications},
    volume       = {31},
    number       = {2},
    pages        = {14-23},
    identifier   = {50278280},
}