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Scholars Portal
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Preserved
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2026-03-19
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Preserved : 1 (2 to 4); 2 (1 to 4); 3 (1 to 4); 4 (sup1, 1 to 4); 5 (sup1, 1 to 4); 6 (sup1, 1 to 4); 7 (1 to 4); 8 (1 to 4); 9 (1 to 4); 10 (sup1, 1 to 4); 11 (sup1, 1 to 4); 12 (1 to 4); 13 (sup1, 1 to 4); 14 (1 to 6); 15 (0 to 6); 16 (sup1, 1 to 6); 17 (sup1, 1 to 6); 18 (sup1, 1 to 6); 19 (sup1, 1 to 6); 20 (1 to 6); 21 (sup1, 1 to 6); 22 (1 to 6); 23 (sup1, 1 to 6); 24 (1 to 6); 25 (1 to 6); 26 (1 to 6); 27 (1 to 6); 28 (1 to 6); 29 (1 to 6); 30 (1 to 6); 31 (1)
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Internet Archive
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Preserved
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2025-08-08
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11
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Portico
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Preserved
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2026-04-09
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Preserved : 1998: 3(3), 1999: 4(S 2, 3)
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Portico
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Preserved
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2026-04-09
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Preserved : 2001: 6(S 1)
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Portico
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Preserved
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2026-04-09
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Preserved : 2009: 14(5-6), 2010: 15(0-1, S 1, 2, S 2, 3-6), 2011: 16(1, S 1, 2-6), 2012: 17(1, S 1, 2-6), 2013: 18(1, S 1, 2-6), 2014: 19(1, S 1, 2-6), 2015: 20(1-4)
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LOCKSS Archive
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Preserved
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2026-04-06
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1 to 29
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CLOCKSS Archive
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Preserved
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2026-04-06
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ahead-of-print to 30
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LOCKSS Archive
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In Progress
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2026-04-06
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30, 31
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Portico
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Preserved
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2026-04-09
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Preserved : 1997: 2(1), 1998: 3(1-3), 1999: 4(1-4), 2000: 5(1-4), 2001: 6(1-4), 2002: 7(1-4), 2003: 8(1-4), 2004: 9(1-4), 2005: 10(1-4), 2006: 11(1-4), 2007: 12(1-4), 2007: 13(1)
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Portico
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Preserved
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2026-04-09
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Preserved : 2008: 13(2-4), 2008: 13 Suppl 1, 2008: 13 Suppl 2, 2009: 14(1-4), 2010: 15(1-6), 2011: 16(1-6), 2012: 17(1-6), 2013: 18(1-6), 2014: 19(1-6), 2015: 20(1-6), 2016: 21(1-6), 2017: 22(1-6), 2018: 23(1-6), 2019: 24(1-6), 2020: 25(1-6), 2021: 26(1-6), 2022: 27(1-6), 2023: 28(1-6), 2024: 29(1-6), 2025: 30(1-6), 2026: 31(1-2)
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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 (sup1, 1 to 4); 2 (1 to 6); 3 (1 to 4); 4 (sup1, 1 to 4); 5 (S1, 1 to 4); 6 (sup1, 1 to 4); 7 (sup2, 1 to 4); 8 (1 to 4); 9 (1 to 4); 11 (sup1, 1 to 4); 12 (1 to 4); 13 (sup1, 1 to 4); 14 (1 to 6); 15 (sup1, 1 to 6); 16 (sup1, 1 to 6); 17 (sup1, 1 to 6); 18 (sup1, 1 to 6); 19 (sup1, 1 to 6); 21 (sup1, 1 to 6); 22 (1 to 6); 23 (sup1, 1 to 6); 24 (1 to 6); 25 (1 to 6); 26 (1 to 6); 27 (1 to 6); 28 (1 to 6); 29 (1 to 6)
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