@article{89687,
      url = {http://digitallibrary.un.org/record/89687},
      title = {Review of changes in the science and technology policy of  the People's Republic of Bulgaria /},
      publisher = {UN,},
      recid = {89687},
      pages = {7 p.},
      address = {Geneva :. 1989-04-21},
      year = {1990},
      month = {Apr},
}