title: [Flaw of demand coverage based method for optimal locations of monitoring stations and modification].
authors.affiliation: Department of Environmental Science and Engineering,Tsinghua University, Beijing 100084, China. shumingliu@tsinghua.edu.cn
authors.forename: Shu-Ming
authors.initials: SM
authors.lastname: Liu
authors.forename: Zhen-Yu
authors.initials: ZY
authors.lastname: Li
authors.forename: Jin-Duan
authors.initials: JD
authors.lastname: Chen
authors.forename: Qi
authors.initials: Q
authors.lastname: Wang
authors.forename: Fan-Lin
authors.initials: FL
authors.lastname: Meng