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ZBW - Leibniz Information Centre for Economics
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Preserved
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2025-12-15
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Preserved : 58:1 to 58:3;59:1 to 59:3;60:1 to 60:3;61:1 to 61:3;62:1 to 62:3;63:1 to 63:3;64:1 to 64:3;65:1 to 65:3;66:1 to 66:3;66:3;67:1 to 67:3;67:3;68:1 to 68:3;69:1 to 69:3;70:1 to 70:2;70:3;71:1 to 71:2;71:3;72:1 to 72:3;73:1 to 73:3
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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 70 (3); 73 (, 1); 74 (, 1 to 3); 75 (, 1 to 3); 76 (, 1); 2020; 2022; 2023; 2024; 2025
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Portico
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Preserved
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2026-02-12
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Preserved : 2016: 58(1-3), 2016: 59(1-3), 2016: 60(1-3), 2016: 61(1-3), 2016: 62(1-3), 2016: 63(1-3), 2016: 64(1-3), 2016: 65(1-3), 2016: 66(1-3), 2016: 67(1-3), 2017: 68(1-3), 2018: 69(1-3), 2018/2019: 70(1-3), 2020: 71(1-3), 2021: 72(1-3), 2022: 73(1-3), 2023: 74(1-3), 2024: 75(1-3), 2025: 76(1-2)
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National Digital Preservation Program, China
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Preserved
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2025-12-04
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Preserved : 6 (1 to 3); 7 (1 to 3); 58 (1 to 3); 59 (1 to 3); 61 (1 to 3); 62 (1 to 3); 63 (1 to 3); 64 (1 to 3); 65 (1 to 3); 66 (1 to 3); 67 (1 to 3); 68 (1 to 3); 69 (1 to 3); 71 (1 to 3); 72 (1 to 3); 73 (1 to 3); 74 (1, 2)
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Library of Congress
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Preserved
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2025-04-07
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64 (2, 3); 65 (1 to 3); 66 (2); 67 (1 to 3); 68 (1 to 3); 69 (1 to 3); 70 (1 to 3); 73 (2, 3); 74 (1 to 3); 75 (1)
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