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Scholars Portal
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Preserved
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2026-03-19
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Preserved : 9 (1); 15 (5, 6); 16 (1 to 6); 17 (1 to 6); 18 (1 to 8); 19 (1 to 8); 20 (1 to 8); 21 (1 to 8); 22 (1 to 3)
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CLOCKSS Archive
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Preserved
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2026-04-27
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1 to 22
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Portico
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Preserved
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2026-04-23
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Preserved : 2013: 9(1)
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Portico
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Preserved
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2026-04-23
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Preserved : 2019: 15(5-6), 2020: 16(1-6), 2021: 17(1-6), 2022: 18(1-8), 2023: 19(2-8), 2024: 20(1-8), 2025: 21(1-8), 2026: 22(1-3)
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National Library of the Netherlands
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Preserved
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2024-12-15
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Preserved : 5 (1-4); 6 (1-4); 7 (1-4); 8 (1-4); 9 (1-4, 6); 10 (1-6); 11 (1-6); 12 (1-6); 13 (1-6); 14 (1-6); 15 (1-4); 148 (2)
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Library of Congress
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Preserved
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2025-04-07
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14 (1 to 6); 15 (1 to 6); 16 (1 to 6); 17 (1 to 6); 18 (1 to 8); 19 (1 to 8); 20 (1 to 7)
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National Library of the Netherlands
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Preserved
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2024-12-15
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Preserved : 15 (5)
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