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Scholars Portal
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Preserved
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2026-03-19
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Preserved : Unassigned (Unassigned); 1 (1 to 6); 2 (none, 1 to 8); 3 (1 to 8); 4 (none, 1 to 8); 5 (none, 1 to 8); 6 (none, 1 to 8); 7 (none, 1 to 8); 8 (none, 1 to 8); 9 (none, 1 to 12); 10 (none, 1 to 12); 11 (none, 1 to 12); 12 (1 to 12); 13 (1 to 12); 14 (1 to 12); 15 (1 to 12); 16 (1 to 12); 17 (1 to 12); 18 (1 to 12); 19 (1 to 12); 20 (1-1, 2 to 12); 21 (1 to 12); 22 (1 to 12); 23 (1 to 3); 40 (1); 41 (2)
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Internet Archive
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Preserved
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2025-08-08
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9
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Portico
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Preserved
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2026-04-16
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Preserved : 1986: 1(1-6, ), 1987: 2(1-8, ), 1988: 3(1-8), 1989: 4(1-8, ), 1990: 5(1-8, ), 1991: 6(1-8, ), 1992: 7(1-8, ), 1993: 8(1-8, ), 1994: 9(1-12, ), 1995: 10(1-12, ), 1996: 11(1-12, ), 1997: 12(1-12), 1998: 13(1-12), 1999: 14(1-12)
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CLOCKSS Archive
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Preserved
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2026-04-13
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11 to 34, 37
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LOCKSS Archive
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In Progress
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2026-04-13
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11 to 14, 41
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LOCKSS Archive
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Preserved
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2026-04-13
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12 to 40
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Portico
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Preserved
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2026-04-16
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Preserved : 2009: 24(6-12), 2010: 25(1-12), 2011: 26(1-12), 2012: 27(1-12), 2013: 28(1-12), 2014: 29(1-12), 2015: 30(1-12), 2016: 31(1-12), 2017: 32(1-12), 2018: 33(1-12), 2019: 34(1-12), 2020: 35(1-12), 2021: 36(1-12), 2022: 37(1-12), 2023: 38(1-12), 2024: 39(1-12), 2025: 40(1-5, 7-12), 2026: 41(1-3)
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CLOCKSS Archive
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In Progress
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2026-04-13
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35, 36, 38 to 41
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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 : (, 1, 4 to 9, 11, 12); 3 (1, 11, 12); 4 (1 to 9); 23 (1 to 9, 11, 12); 24 (1 to 9, 11, 12); 25 (1 to 9, 11, 12); 26 (1 to 9, 11, 12); 27 (1 to 9, 11, 12); 28 (1 to 9, 11, 12); 29 (1 to 9, 11, 12); 31 (2 to 5, 7 to 9, 11); 32 (1, 3 to 9, 11, 12); 33 (1 to 9, 11, 12); 34 (1 to 9, 12); 35 (1 to 9, 11, 12); 36 (1 to 9, 11, 12); 37 (1 to 9, 11, 12); 38 (1 to 9, 11, 12); 39 (1 to 9, 11, 12)
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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 : (, 1, 4 to 9, 11, 12); 3 (1, 11, 12); 4 (1 to 9, 11); 23 (1 to 9, 11, 12); 24 (1 to 9, 11, 12); 25 (1 to 9, 11, 12); 26 (1 to 9, 11, 12); 27 (1 to 9, 11, 12); 28 (1 to 9, 11, 12); 29 (1 to 9, 11, 12); 31 (2 to 5, 7 to 9, 11); 32 (1, 3 to 9, 11, 12); 33 (1 to 9, 11, 12); 34 (1 to 9, 12); 35 (1 to 9, 11, 12); 36 (1 to 9, 11, 12); 37 (1 to 9, 11, 12); 38 (1 to 9, 11, 12); 39 (1 to 9, 11, 12)
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