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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 to 6); 2 (1 to 6); 3 (1 to 6); 4 (1 to 8); 5 (1 to 8); 6 (1 to 8); 7 (1 to 10); 8 (1 to 10); 9 (Suppl, 1 to 10); 10 (1 to 10); 11 (Suppl, 1 to 12); 12 (Suppl, 1 to 12); 13 (Suppl, 1 to 12); 14 (Suppl, 1 to 12); 15 (Suppl, 1 to 12); 16 (Suppl, 1 to 12); 17 (Suppl, 1 to 12); 18 (Suppl, 1 to 13); 19 (Suppl, 1 to 13); 20 (Suppl, 1 to 13); 21 (Suppl, 1 to 13); 22 (Suppl, 1 to 13); 23 (Suppl, 1 to 13); 24 (Suppl, 1 to 13); 25 (Suppl, 1 to 13); 26 (Suppl, 1 to 13); 27 (Suppl, 1 to 13); 28 (Suppl, 1 to 13); 29 (Suppl, 1 to 13); 30 (Suppl, 1 to 13); 31 (Suppl, 1 to 13); 32 (Suppl, 1 to 13); 33 (Suppl, 1 to 4)
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Portico
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Preserved
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2026-04-16
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Preserved : 1994: 1(1-6), 1995: 2(1-6), 1996: 3(1-6), 1997: 4(3, 7-8), 1998: 5(1-2, 6, 8), 1999: 6(2)
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LOCKSS Archive
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Preserved
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2026-04-13
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1 to 26
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CLOCKSS Archive
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Preserved
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2026-04-13
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1 to 33
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Portico
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Preserved
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2026-04-16
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Preserved : 2000: 7(7-8), 2001: 8(2, 5, 9-10), 2002: 9(S 1, 3-4, 9), 2003: 10(2-3, 5-6, 8-10), 2004: 11(S 2, 3, 5, 11), 2005: 12(S 1, 7, 11), 2006: 13(1, S 2, 5-6, 8, 11), 2007: 14(1-2, S 2, 3, 5-8, 10, 12), 2008: 15(1, S 2, 4-6, 8-9), 2009: 16(1, S 1, 2, 6), 2010: 17(S 1, 2, 4), 2011: 18(S 1, 5, 7, 9), 2012: 19(S 1, 2, S 3, 7-8, 11-13), 2013: 20(1, S 1, 2-3, S 3, 4-8, 10-12), 2014: 21(1, S 1, 2-13), 2015: 22(2-3, S 3, 4-12), 2016: 23(1, S 1, 2-5, S 5, 6-13), 2017: 24(1, S 1, 2-13), 2018: 25(1, S 1, 2-13), 2019: 26(1, S 1, 2-3, S 3, 4-13), 2020: 27(1, S 1, 2, S 2, 3, S 3, 4-13), 2021: 28(1, S 1, 2, S 2, 3, S 3, 4-13), 2022: 29(1, S 1, 2, S 2, 3, S 3, 4-13), 2023: 30(1, S 1, 2, S 2, 3-9, 11-13), 2024: 31(1, S 1, 2, S 2, 3-13), 2025: 32(1, S 1, 2, S 2, 3-13), 2026: 33(1, S 1, 2-4)
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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 : 1 (1 to 9); 2 (1 to 9, 11 to 13); 3 (Suppl 2, 1 to 9, 11 to 13); 4 (1 to 8); 5 (1 to 8); 6 (1 to 8); 7 (1 to 9); 8 (1 to 9); 9 (1 to 9); 11 (1 to 9, 11, 12); 12 (1 to 9, 11, 12); 13 (1 to 9, 11, 12); 14 (1 to 9, 11, 12); 15 (1 to 9, 11, 12); 16 (1 to 9, 11, 12); 17 (1 to 9, 11, 12); 18 (1 to 9, 11 to 13); 19 (1 to 9, 11 to 13); 21 (1 to 9, 11 to 13); 22 (1 to 9, 11 to 13); 23 (1 to 9, 11 to 13); 24 (1 to 9, 11 to 13); 25 (Suppl 1, 1 to 9, 11 to 13); 26 (Suppl 1, 1 to 9, 11 to 13); 27 (Suppl 1, 1 to 9, 11 to 13); 28 (Suppl 3, 1 to 9, 11 to 13); 29 (Suppl 3, 1 to 9, 11 to 13); 31 (Suppl 2, 1 to 9, 11 to 13)
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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 (1 to 9); 2 (1 to 9, 11 to 13); 3 (Suppl 2, 1 to 9, 11 to 13); 4 (1 to 8); 5 (1 to 8); 6 (1 to 8); 7 (1 to 9); 8 (1 to 9); 9 (1 to 9); 11 (1 to 9, 11, 12); 12 (1 to 9, 11, 12); 13 (1 to 9, 11, 12); 14 (1 to 9, 11, 12); 15 (1 to 9, 11, 12); 16 (1 to 9, 11, 12); 17 (1 to 9, 11, 12); 18 (1 to 9, 11 to 13); 19 (1 to 9, 11 to 13); 21 (1 to 9, 11 to 13); 22 (1 to 9, 11 to 13); 23 (1 to 9, 11 to 13); 24 (1 to 9, 11 to 13); 25 (Suppl 1, 1 to 9, 11 to 13); 26 (Suppl 1, 1 to 9, 11 to 13); 27 (Suppl 1, 1 to 9, 11 to 13); 28 (Suppl 3, 1 to 9, 11 to 13); 29 (Suppl 3, 1 to 9, 11 to 13); 31 (Suppl 2, 1 to 9, 11 to 13)
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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 : 5 (8); 6 (1-8); 7 (1, 2, 4-7, 9, 10); 8 (1-10); 9 (1, 3); 10 (1-10); 11 (2-12); 12 (1-12); 13 (supplement-2, 1-7, 10-12); 14 (supplement-2, 1-12); 15 (1-12); 16 (1-12); 17 (supplement-1, 1-12); 18 (supplement-3, 1-13); 19 (supplement-3, 1-13); 20 (supplement-3, 1-13); 21 (supplement-4, 1-13); 22 (supplement-3, 1-13); 23 (supplement-5, 1-13); 24 (supplement-3, 1-13); 25 (supplement-1, 1-13); 26 (supplement-2, 1-12)
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