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Proceedings of the 40th Pugwash Conference on Science and World Affairs "Towards a Secure World in the Twenty-First Century", Egham, UK, 15-20 September 1990. L., 1991.
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Proceedings of the 40th Pugwash Conference on Science and World Affairs "Towards a Secure World in the Twenty-First Century", Egham, UK, 15-20 September 1990. L., 1991.
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