Addressing withdrawal from the Treaty on the Non-Proliferation of Nuclear Weapons : working paper / submitted by Armenia, Australia, Austria, Belarus, Belgium, Bulgaria, Canada, China, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Georgia, Germany, Greece, Hungary, Ireland, Italy, Japan, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of Korea, Romania, Russian Federation, Slovakia, Slovenia, Spain, Sweden, United Kingdom of Great Britain and Northern Ireland and United States of America