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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); 2; 3; 4; 5; 6; 7; 8 (2); 9 (1, 2); 10 (1); 11 (2); 12 (1-2); 16 (2); 17 (1 to 4); 18 (1 to 4); 19 (1 to 4); 20 (Suppl, 1 to 4); 21 (1 to 4); 22 (1 to 4); 23 (1 to 4); 24 (1 to 4); 25 (1 to 4); 26 (1 to 4); 27 (1 to 4); 28 (1 to 4); 29 (1 to 4); 30 (1 to 4); 31 (1 to 4); 32 (1 to 4); 33 (1 to 4); 34 (Suppl, 1 to 4); 35 (1 to 4); 36 (Suppl, 1 to 6); 37 (Suppl, 1 to 6); 38 (Suppl, 1 to 6); 39 (Suppl, 1 to 6); 40 (Suppl, 1 to 6); 41 (1 to 12); 42 (1 to 4)
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Portico
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Preserved
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2026-04-09
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Preserved : 1982: 1(1), 1983: 2(1), 1984: 3(1), 1985: 4(1), 1987: 5(1), 1989: 6(1), 1991: 7(1), 1992: 8(1-2), 1993: 9(1-2), 1994: 10(1), 1995: 11(1-2), 1996: 12(1-2)
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CLOCKSS Archive
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Preserved
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2026-04-06
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1 to 12, 16 to 42
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Portico
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Preserved
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2026-04-09
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Preserved : 2000: 16(1-2), 2001: 17(1-4), 2002: 18(1-4), 2003: 19(1-4), 2004: 20(1, S 1, 2-4), 2005: 21(1-4), 2006: 22(1-4), 2007: 23(1-4), 2008: 24(1-4), 2009: 25(1-4), 2010: 26(1-4), 2011: 27(1-4), 2012: 28(1-4), 2013: 29(1-4), 2014: 30(1-3), 2015: 31(1-4), 2016: 32(1-4), 2017: 33(1-4), 2018: 34(1, S 1, 2, S 2, 3-4), 2019: 35(1-4), 2019/2020: 36(1, S 1, 2, S 2, 3-6), 2021: 37(1, S 1, 2, S 2, 3, S 3, 4-6), 2022: 38(1, S 1, 2, S 2, 3-6), 2023: 39(1, S 1, 2, S 2, 3-6), 2024: 40(1, S 1, 2-6), 2025: 41(1, 4-12), 2026: 42(1-4)
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LOCKSS Archive
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In Progress
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2026-04-06
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28, 35
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LOCKSS Archive
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Preserved
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2026-04-06
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29 to 34
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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 (Suppl 1, 1 to 4); 3 (1 to 4); 4 (Suppl 1, 1 to 6); 16 (1, 2); 17 (1 to 4); 18 (1 to 4); 19 (1 to 4); 21 (1 to 4); 22 (1 to 4); 23 (1 to 4); 24 (1 to 4); 25 (1 to 4); 26 (1 to 4); 27 (1 to 4); 28 (1 to 4); 29 (1 to 4); 31 (1 to 4); 32 (1 to 4); 33 (1 to 4); 34 (Suppl 1, 1 to 4); 35 (Suppl 1, 1 to 4); 36 (Suppl 1, 1 to 6); 37 (Suppl 3, 1 to 6); 38 (Suppl 2, 1 to 6); 39 (Suppl 2, 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 : 2 (Suppl 1, 1 to 4); 3 (1 to 4); 4 (Suppl 1, 1 to 6); 16 (1, 2); 17 (1 to 4); 18 (1 to 4); 19 (1 to 4); 21 (1 to 4); 22 (1 to 4); 23 (1 to 4); 24 (1 to 4); 25 (1 to 4); 26 (1 to 4); 27 (1 to 4); 28 (1 to 4); 29 (1 to 4); 31 (1 to 4); 32 (1 to 4); 33 (1 to 4); 34 (Suppl 1, 1 to 4); 35 (Suppl 1, 1 to 4); 36 (Suppl 1, 1 to 6); 37 (Suppl 3, 1 to 6); 38 (Suppl 2, 1 to 6); 39 (Suppl 2, 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 : 16 (1, 2); 17 (4); 18 (2); 20 (3); 21 (1); 22 (3); 23 (1-4); 24 (1, 3, 4); 25 (1-4); 26 (1-4); 27 (1-4); 28 (1-4); 29 (1, 2, 4); 30 (1-4); 31 (1-4); 32 (1-4); 33 (1-4); 34 (supplement-2, 1-4); 35 (supplement-2, 1-4)
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