@article{189590,
      author = {Mâra, L. and Vintilescu, M.},
      url = {http://digitallibrary.un.org/record/189590},
      title = {Optimised hydrogeological criteria for establishing and  operating performance monitoring networks for groundwater :  discussion paper /},
      publisher = {UN,},
      recid = {189590},
      pages = {22 p. :},
      address = {Geneva :. 1995-08-28},
      year = {1995},
      month = {Aug},
}