@article{189513,
      url = {http://digitallibrary.un.org/record/189513},
      title = {Guidelines to differentiate between prohibited and  permitted activities /},
      publisher = {UN,},
      recid = {189513},
      pages = {4 p.},
      address = {Geneva :. 1992-04-07},
      year = {1992},
      month = {Apr},
}