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Scholars Portal
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Preserved
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2026-03-19
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Preserved : 7 (1 to 6); 8 (1 to 6); 9 (1 to 6); 10 (1 to 6); 11 (1 to 6); 12 (1 to 6); 13 (1 to 6); 14 (1 to 6); 15 (1 to 12); 16 (Suppl, 1 to 12); 17 (1 to 15); 18 (Suppl, 1 to 15); 19 (1 to 12); 20 (1 to 12); 21 (Suppl, 1 to 12); 22 (1 to 12); 23 (Suppl, 1 to 12); 24 (1 to 12); 25 (Suppl, 1 to 12); 26 (1 to 12); 27 (1 to 12); 28 (1 to 12); 29 (1 to 12); 30 (1 to 12); 31 (1 to 12); 32 (1 to 12); 33 (1 to 12); 34 (1 to 12); 35 (1 to 12); 36 (1 to 12); 37 (1 to 12); 38 (1, 2, 4 to 12); 39 (Suppl, 1 to 12); 40 (1 to 4)
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Portico
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Preserved
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2026-04-02
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Preserved : 1994: 1(1, 3), 1994: 2(5-6), 1995: 3(5)
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LOCKSS Archive
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In Progress
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2026-04-06
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1 to 32, 34
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Portico
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Preserved
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2026-04-02
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Preserved : 1996: 5(6), 1996: 6(1, 5), 1997: 7(1-6), 1997: 8(1-6), 1998: 9(1-6), 1998: 10(1-6), 1999: 11(1-6), 1999: 12(1-6), 2000: 13(1-6), 2000: 14(1-6), 2001: 15(1-12), 2002/2012: 16(1, S 1, 2-12), 2003: 17(1-15), 2004/2012: 18(1, S 1, 2-15), 2005: 19(1-12), 2006: 20(1, S 1, 2-12), 2007: 21(1, S 1, 2-12), 2008: 22(1-12), 2009/2012: 23(1, S 1, 2-12), 2010: 24(1-12), 2011/2012: 25(1, S 1, 2-12), 2012: 26(1-12), 2013: 27(1-12), 2014: 28(1-12), 2015: 29(1-12), 2016: 30(1-12), 2017: 31(1-12), 2018: 32(1-12), 2019: 33(1-12), 2020: 34(1-12), 2021: 35(1-12), 2022: 36(1-12), 2023: 37(2-12), 2024: 38(1-12), 2025: 39(1, S 1, 2, 5-12), 2026: 40(1-4)
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CLOCKSS Archive
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Preserved
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2026-04-06
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7 to 40
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LOCKSS Archive
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Preserved
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2026-04-06
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33
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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 : 38 (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 : 38 (1 to 9, 11, 12)
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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 : 7 (4); 8 (1, 2); 9 (4); 10 (1); 18 (supplement-1); 23 (10-12); 24 (7-9); 25 (2, 10, 11); 26 (1-7, 9, 12); 27 (supplement-1, 2-12); 28 (1-12); 29 (1-12); 30 (1-12); 31 (1-12); 32 (1-12); 33 (1-11)
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