Weighted geometric set cover problems revisited. Har-Peled, S. & Lee, M. JoCG, 3(1):65-85, 2012.
Weighted geometric set cover problems revisited [link]Paper  bibtex   
@article{ dblp2581890,
  title = {Weighted geometric set cover problems revisited},
  author = {Sariel Har-Peled and Mira Lee},
  author_short = {Har-Peled, S. and Lee, M.},
  bibtype = {article},
  type = {article},
  year = {2012},
  key = {dblp2581890},
  id = {dblp2581890},
  biburl = {http://www.dblp.org/rec/bibtex/journals/jocg/Har-PeledL12},
  url = {http://jocg.org/index.php/jocg/article/view/77},
  journal = {JoCG},
  pages = {65-85},
  number = {1},
  volume = {3},
  text = {JoCG 3(1):65-85 (2012)}
}

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