@article{13509,
      recid = {13509},
      title = {Dewatering active underground coal mines : technical  aspects and cost-effectiveness /},
      publisher = {Environmental Protection Agency, Office of Research and  Development, [Office of Energy, Minerals, and Industry],  Industrial Environmental Research Laboratory,},
      address = {Cincinnati, Ohio :},
      pages = {xiii, 124 p. :},
      year = {1979},
      note = {July 1979.},
      url = {http://library.usi.edu/record/13509},
}