@article{94406,
      note = {"Secretariat technical information paper no. 11.1".},
      url = {http://digitallibrary.un.org/record/94406},
      title = {Heat-pump systems for buildings : note /},
      publisher = {UN,},
      recid = {94406},
      pages = {5, 10 p. :},
      address = {Geneva :. 1986-06-18},
      year = {1986},
      month = {Jun},
}