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On the Observation of Direct CP-Symmetry Violation in Neutral Kaon Decays V. D. Kekelidze, D. T. Madigozhin A series of precision experiments on parameter Re(e'/e) measurement in decays of neutral kaons, performed at CERN and Fermilab, that proved unambiguously the existence of direct CP-violation in Nature, is described. The comparison of these experiments and their approaches to the problem shows the advantages of different techniques in the achievement of the best measurement precision. |