@article{97554, url = {http://digitallibrary.un.org/record/97554}, title = {Progress report to the Conference on Disarmament on the 30th session of the Ad Hoc Group of Scientific Experts to Consider International Co-operative Measures to Detect and Identify Seismic Events.}, publisher = {UN,}, recid = {97554}, pages = {4 p.}, address = {Geneva :. 1990-08-10}, year = {1990}, month = {Aug}, }