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Theo	Theoretical physics [Текст] : lectures presented at the seminar on theoretical physics organized by the International Atomic Energy Agency held at the Palazzino Miramare, Trieste, from 16 July to 25 August, 1962 / R. Capps, A.P. Contogouris, K.E. Eriksson. — Vienna : IAEA, 1963. — 670 p.