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Continue to ChatU.S. Scientists Urge USSR to Allow Levich to Attend Oxford Science Confab https://www.jta.org/archive/u-s-scientists-urge-ussr-to-allow-levich-to-attend-oxford-science-confab
U.S. Scientists Urge USSR to Allow Levich to Attend Oxford Science Confab https://www.jta.org/archive/u-s-scientists-urge-ussr-to-allow-levich-to-attend-oxford-science-confab