@article{181797, url = {http://digitallibrary.un.org/record/181797}, title = {Preliminary Event Identification (PEI) and CTBT Verification : progress report on ongoing Australian national research and development work : working paper /}, publisher = {UN,}, recid = {181797}, pages = {30 p. :}, address = {Geneva :. 1994-12-12}, year = {1994}, month = {Dec}, }