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Scholars Portal
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Preserved
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2026-03-19
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Preserved : 1 (1, 2); 2 (1, 2); 3 (1, 2); 4 (1, 2); 5 (1, 2); 6 (1, 2); 7 (1, 2); 8 (1, 2); 9 (1, 2); 10 (1, 2); 11 (1, 2); 12 (1, 2); 13 (1, 2); 14 (1, 2); 15 (1, 2); 16 (1, 2); 17 (1, 2); 18 (1, 2); 19 (1, 2); 20 (1, 2); 21 (1, 2); 22 (1, 2); 23 (1, 2); 24 (1, 2); 25 (1, 2); 26 (1, 2); 27 (1, 2); 28 (1, 2); 29 (1, 2); 30 (1 to 3); 31 (1 to 3); 32 (1 to 3); 33 (1 to 3); 34 (1 to 3); 35 (1 to 3); 36 (1 to 4); 37 (1 to 4); 38 (1 to 4); 39 (1 to 4); 40 (1, 3, 4); 41 (1 to 4); 42 (1, 2)
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CLOCKSS Archive
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Preserved
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2026-04-13
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1 to 42
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Portico
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Preserved
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2026-04-16
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Preserved : 1997: 13(1-2), 1998: 14(1-2), 1999: 15(1-2), 2000: 16(1-2), 2001: 17(1-2), 2002: 18(1-2), 2003: 19(1-2), 2004: 20(1-2), 2005: 21(1-2), 2006: 22(1-2), 2007: 23(1-2), 2008: 24(1-2), 2009: 25(1-2), 2010: 26(1-2), 2011: 27(1-2), 2012: 28(1-2), 2013: 29(1-2), 2014: 30(1-3), 2015: 31(2-3), 2016: 32(1-3), 2017: 33(1-3), 2018: 34(1-3), 2019: 35(1-3), 2019/2020: 36(1-4), 2021: 37(1-4), 2022: 38(1-4), 2023: 39(1-4), 2024: 40(1-4), 2025: 41(1-4), 2026: 42(1-2)
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LOCKSS Archive
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In Progress
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2026-04-13
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28, 35
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LOCKSS Archive
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Preserved
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2026-04-13
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29 to 34
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National Digital Preservation Program, China
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Preserved
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2025-10-23
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Preserved : 2 (1, 2); 3 (1 to 3); 4 (1 to 4); 13 (1, 2); 14 (1, 2); 15 (1, 2); 16 (1, 2); 17 (1, 2); 18 (1, 2); 19 (1, 2); 21 (1, 2); 22 (1, 2); 23 (1, 2); 24 (1, 2); 25 (1, 2); 26 (1, 2); 27 (1, 2); 28 (1, 2); 29 (1, 2); 31 (1 to 3); 32 (1 to 3); 33 (1 to 3); 34 (1 to 3); 35 (1 to 3); 36 (1 to 4); 37 (1 to 4); 38 (1 to 4); 39 (1 to 4)
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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 : 2 (1, 2); 3 (1 to 3); 4 (1 to 4); 13 (1, 2); 14 (1, 2); 15 (1, 2); 16 (1, 2); 17 (1, 2); 18 (1, 2); 19 (1, 2); 21 (1, 2); 22 (1, 2); 23 (1, 2); 24 (1, 2); 25 (1, 2); 26 (1, 2); 27 (1, 2); 28 (1, 2); 29 (1, 2); 31 (1 to 3); 32 (1 to 3); 33 (1 to 3); 34 (1 to 3); 35 (1 to 3); 36 (1 to 4); 37 (1 to 4); 38 (1 to 4); 39 (1 to 4)
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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 : 19 (1); 20 (2); 21 (1, 2); 22; 23 (1, 2); 24 (1, 2); 25 (1, 2); 26 (1, 2); 27 (1, 2); 28 (1, 2); 29 (1, 2); 30 (1-3); 31 (1-3); 32 (1-3); 33 (1-3); 34 (1-3); 35 (1-3)
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