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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 8 (1-3, 3, 4); 9 (, 1 to 4); 10 (, 1 to 4); 11 (, 1-2); 1995; 1996; 1997
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Internet Archive
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Preserved
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2025-08-08
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1 to 5
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CLOCKSS Archive
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Preserved
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2026-02-09
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1 to 42
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Portico
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Preserved
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2026-02-12
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Preserved : 1989/1990: 1(1-6), 1990/1991: 2(1-6), 1991/1992: 3(1-6), 1992: 4(1-6), 1993: 5(1-6), 1993/1994: 6(1-4), 1994/1995: 7(1-4), 1995: 8(1-4), 1995/1996: 9(1-4), 1996: 10(1-4), 1997: 11(1-4), 1998: 12(1-4), 1998: 13(1-4), 1999: 14(1-4), 1999: 15(1-4), 2000: 16(1-4), 2000: 17(1-4), 2001: 18(1-4), 2001: 19(1-4), 2002: 20(1-6), 2003: 21(1-6), 2004: 22(1-6), 2005: 23(1-6), 2006: 24(1-6), 2007: 25(1-2, 5-6), 2008: 26(1-6), 2009: 27(1-6), 2010: 28(1-6), 2011: 29(1-6), 2012: 30(1-6), 2013: 31(1-6), 2014: 32(1-6), 2015: 33(1-2)
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CLOCKSS Archive
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In Progress
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2026-02-09
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1 to 43
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LOCKSS Archive
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In Progress
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2026-02-09
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1 to 27, 43
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LOCKSS Archive
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Preserved
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2026-02-09
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28 to 42
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Portico
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Preserved
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2026-02-12
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Preserved : 2023: 41(5-6), 2024: 42(1-4), 2025: 43(1-4), 2026: 44(1)
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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 : 4 (2, 3); 34 (2 to 6); 35 (1 to 6); 36 (1 to 6); 37 (1 to 6); 38 (1 to 6); 39 (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 : 1 (2, 5); 3 (2, 3, 6); 4 (1, 3-5); 5 (2, 5-6); 6 (1, 3, 4); 7 (1-3); 8 (1-2, 4); 9 (1, 2); 10 (1, 2); 11 (1-2, 4); 12 (1, 2-3, 4); 13 (1-2, 3-4); 14 (1, 2-3, 4); 15 (1, 2-3, 4); 16 (1, 2, 3-4); 17 (1, 2-3, 4); 18 (1, 2-3, 4); 19 (1-2, 3-4); 20 (1-2, 3-4, 5); 21 (1-2, 3-4, 5-6); 22 (1, 2, 3-5, 6); 23 (1, 2, 3-4, 5-6); 24 (1-3, 4-6); 25 (1, 2, 3-4, 5-6); 26 (1, 2-3, 4-5, 6); 27 (1-6); 28 (1-6); 29 (2, 4, 5); 30 (2-6); 31 (1-6); 32 (1-3, 5, 6); 33 (1-6); 34 (1-6); 35 (1-6); 36 (1-6); 37 (1-5)
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