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