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Internet Archive
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Preserved
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2026-07-13
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1 to 8
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Scholars Portal
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Preserved
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2026-06-02
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Preserved : 1 (2-3, 4); 2 (1, 2, 3-4); 3 (1 to 4); 5 (1 to 4); 6 (1 to 4); 7 (1 to 4); 8 (1 to 6); 9 (1 to 6); 10 (2, 4 to 6); 11 (1 to 6); 12 (1 to 6); 13 (1 to 6); 14 (Supplement:, 1 to 6); 15 (1 to 6); 16 (Supplement:, 1 to 6); 17 (1 to 6); 18 (Supplement:, 1 to 6); 19 (1, 3 to 6); 20 (1 to 6); 21 (1 to 6); 22 (1 to 6); 23 (1 to 6); 24 (1, 2); 26 (Supplement, 3 to 6); 27 (1 to 6); 28 (1 to 4, 6); 29 (suppl_1, 1 to 8); 30 (suppl_1, 1 to 4, 6 to 10); 31 (1 to 7); 32 (Supplement_1, 1, 2, 5 to 10); 33 (Supplement_1, 1 to 4); 34 (Supplement_1, 1 to 4); 35 (1 to 4); 36; 37 (1 to 4); 38 (1, 2)
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Portico
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Preserved
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2026-07-16
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Preserved : 1994: 6(1-4)
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Portico
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Preserved
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2026-07-16
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Preserved : 1989: 1(1-4), 1990: 2(1-4), 1991: 3(1-4), 1992: 4(1-4), 1993: 5(1-4), 1994: 6(1-4), 1995: 7(1-4), 1996: 8(1-6), 1997: 9(1-6), 1998: 10(1-6), 1999: 11(3-6), 2000: 12(1-6), 2001: 13(1-6), 2002: 14(1-3, 5-6), 2003: 15(1-6), 2004: 16(1-6), 2005: 17(1-6), 2006: 18(1-6), 2007: 19(1-6), 2008: 20(1-6), 2009: 21(1-6), 2010: 22(1-6), 2011: 23(1-6), 2012: 24(1-6), 2013: 25(1-6), 2014: 26(1-6), 2015: 27(1-6), 2016: 28(1-6), 2017: 29(1-8), 2018: 30(1-10), 2019: 31(1-10), 2020: 32(1-10), 2021: 33(1-4), 2022: 34(1-4), 2023: 35(1-4), 2024: 36(1-4), 2025: 37(1-4), 2026: 38(1-3)
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LOCKSS Archive
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Preserved
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2026-07-06
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17 to 20, 22 to 37
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CLOCKSS Archive
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Preserved
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2026-07-06
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20 to 30, 38
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CLOCKSS Archive
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In Progress
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2026-07-06
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31 to 37
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LOCKSS Archive
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In Progress
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2026-07-06
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38
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Scholars Portal
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Preserved
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2026-06-02
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Preserved : 29 (4); 38 (1)
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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 to 6); 3 (suppl_1, 1 to 9); 18 (suppl_1, 1 to 6); 19 (1 to 6); 21 (1 to 6); 22 (1 to 6); 23 (1 to 6); 24 (1 to 6); 25 (1 to 6); 26 (suppl_1, 1 to 6); 27 (1 to 6); 28 (suppl_1, 1 to 6); 29 (suppl_1, 1 to 8); 31 (Supplement_1, 1 to 9); 32 (Supplement_1, 1 to 9); 33 (Supplement_2, 1 to 4); 34 (Supplement_1, 1 to 4); 35 (1 to 4); 36 (1 to 4); 37 (1 to 3)
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National Digital Preservation Program, China
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Preserved
|
2025-12-04
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Preserved : 2 (1 to 6); 3 (suppl_1, 1 to 9); 18 (suppl_1, 1 to 6); 19 (1 to 6); 21 (1 to 6); 22 (1 to 6); 23 (1 to 6); 24 (1 to 6); 25 (1 to 6); 26 (suppl_1, 1 to 6); 27 (1 to 6); 28 (suppl_1, 1 to 6); 29 (suppl_1, 1 to 8); 31 (Supplement_1, 1 to 9); 32 (Supplement_1, 1 to 9); 33 (Supplement_2, 1 to 4); 34 (Supplement_1, 1 to 4); 35 (1 to 4); 36 (1 to 4); 37 (1 to 4)
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British Library
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Preserved
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2019-09-18
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Preserved : 18 (S1), 26 (1 to 6), 27 (1 to 6), 28 (1; 3 to 4; 6; S1), 29 (1 to 2; 4 to 5; 8; S1), 30 (1 to 2; 4 to 8; 10)
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