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Scholars Portal
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Preserved
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2026-03-19
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Preserved : 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); 13; 14 (2, 3-4); 15 (1-2, 3, 4); 16 (1 to 4); 17 (1, 2-3, 4); 18 (1-2, 3-4); 19 (1, 2, 3-4); 20 (1, 2, 3-4); 21 (1-2); 22 (2, 3); 23 (1 to 3); 24 (1, 2-3); 25 (1 to 3); 26 (1-2, 3, 4); 27 (1 to 4); 28 (1, 2, 3-4); 29 (1, 2, 3-4); 30 (1-2, 3, 4); 31 (1 to 6); 32 (1-2, 3 to 6); 33 (1 to 6); 34 (1 to 6); 35 (1 to 6); 36 (1 to 6); 37 (1 to 6); 38 (1 to 6); 39 (1 to 6); 40 (1 to 6); 41 (1 to 6); 42 (1 to 6); 43 (1 to 6); 44 (1 to 6); 45 (1 to 6); 46 (1 to 6); 47 (1 to 6); 48 (1 to 6); 49 (1 to 6); 50 (1 to 6); 51 (1)
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CLOCKSS Archive
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Preserved
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2026-04-13
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1 to 51
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Portico
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Preserved
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2026-04-16
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Preserved : 1994: 19(2-4)
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Portico
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Preserved
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2026-04-16
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Preserved : 1997: 22(1-3), 1998: 23(1-3), 1999: 24(1-3), 2000: 25(1-3), 2001: 26(1-4), 2002: 27(1-4), 2003: 28(1-4), 2004: 29(1-4), 2004/2005: 30(1-4), 2006: 31(1-6), 2007: 32(1-6), 2008: 33(1-6), 2009: 34(1-6), 2010: 35(1-6), 2011: 36(1-6), 2012: 37(1-6), 2013: 38(1-6), 2014: 39(1-6), 2015: 40(2-6), 2016: 41(1-6), 2017: 42(1-6), 2018: 43(1-6), 2019: 44(1-6), 2018/2019/2020: 45(1-6), 2021: 46(1-6), 2022: 47(1-6), 2023: 48(1-6), 2024: 49(1-5), 2025: 50(1-6), 2026: 51(1)
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LOCKSS Archive
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In Progress
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2026-04-13
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37, 44
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LOCKSS Archive
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Preserved
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2026-04-13
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38 to 43
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Library of Congress
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Preserved
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2025-04-07
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41 (5); 43 (1 to 6); 44 (1 to 6); 45 (1 to 6); 46 (1 to 6); 47 (1 to 6); 48 (1 to 6); 49 (1 to 4)
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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 : 3 (1, 3, 4); 4 (1 to 6); 22 (1 to 3); 23 (1 to 3); 24 (1, 2); 25 (1 to 3); 26 (1, 3, 4); 27 (1 to 4); 28 (1 to 3); 29 (1 to 3); 31 (1 to 6); 32 (1, 3 to 6); 33 (1 to 6); 34 (1 to 6); 35 (1 to 6); 36 (1 to 6); 37 (1 to 6); 38 (1 to 6); 39 (1 to 6); 41 (1 to 6); 42 (1 to 6); 43 (1 to 6); 44 (1 to 6); 45 (1 to 6); 46 (1 to 6); 47 (1 to 6); 48 (1 to 6); 49 (1 to 6)
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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 : 3 (1, 3, 4); 4 (1 to 6); 22 (1 to 3); 23 (1 to 3); 24 (1, 2); 25 (1 to 3); 26 (1, 3, 4); 27 (1 to 4); 28 (1 to 3); 29 (1 to 3); 31 (1 to 6); 32 (1, 3 to 6); 33 (1 to 6); 34 (1 to 6); 35 (1 to 6); 36 (1 to 6); 37 (1 to 6); 38 (1 to 6); 39 (1 to 6); 41 (1 to 6); 42 (1 to 6); 43 (1 to 6); 44 (1 to 6); 45 (1 to 6); 46 (1 to 6); 47 (1 to 6); 48 (1 to 6); 49 (1 to 6)
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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 : 24 (1, 2); 25 (1-3); 26 (1, 3, 4); 27 (1-4); 28 (1-3); 29 (1-3); 30 (1-2, 3, 4); 31 (1-6); 32 (1, 3-6); 33 (1-6); 34 (1-6); 35 (1-6); 36 (1-6); 37 (1-6); 38 (2-6); 39 (1-6); 40 (1-6); 41 (1-6); 42 (1-6); 43 (1-6); 44 (1-6)
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