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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 (sup1, 1 to 4); 4 (sup1, 1 to 4); 5 (sup1, 1 to 4); 6 (sup1, 1 to 4); 7 (sup1, 1 to 4); 8 (sup1, 1 to 4); 9 (1 to 4); 10 (sup1, 1 to 6); 11 (1 to 6); 12 (sup1, 1 to 6); 13 (sup1, 1 to 6); 14 (sup1, 1 to 6); 15 (1 to 6); 16 (sup1, 1 to 6); 17 (sup1, 1 to 6); 18 (1 to 6); 19 (sup1, 1 to 6); 20 (1 to 6); 21 (1 to 6); 22 (1 to 6); 23 (sup1, 1 to 6); 24 (sup1, 1 to 8); 25 (sup1, 1 to 8); 26 (sup1, 1 to 8); 27 (sup1, 1 to 8); 28 (1 to 8); 29 (1 to 8); 30 (1 to 8); 31 (sup1, 1 to 9); 32 (1 to 8); 33 (1 to 8); 34 (1 to 8); 35 (1 to 8); 36 (1 to 8); 37 (1 to 8); 38 (1 to 8); 39 (1 to 8); 40 (1 to 8); 41 (1 to 8); 42 (1 to 8); 43 (1, 2); 44 (1); 45
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Internet Archive
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Preserved
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2025-08-08
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8 to 20
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Portico
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Preserved
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2026-04-23
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Preserved : 1997: 17(S 1, 2)
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Portico
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Preserved
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2026-04-23
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Preserved : 2001: 21(5)
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Portico
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Preserved
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2026-04-23
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Preserved : 2005: 25(1, 6), 2006: 26(5), 2007: 27(3)
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Portico
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Preserved
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2026-04-23
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Preserved : 2009: 29(6-7), 2010: 30(1-8), 2011: 31(1, S 1, 2-9), 2012: 32(1-8), 2013: 33(1-8), 2014: 34(1-8), 2015: 35(1-4)
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Portico
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Preserved
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2026-04-23
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Preserved : 1986/1987: 7(1-4), 1987: 8(1-2)
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Portico
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Preserved
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2026-04-23
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Preserved : 1997: 17(1-6), 1998: 18(1-6), 1999: 19(1-6), 2000: 20(1-6), 2001: 21(1-6), 2002: 22(1-3, 5-6), 2003: 23(1-6), 2004: 24(1-8), 2005: 25(1-8), 2006: 26(1-8), 2007: 27(1-8), 2008: 28(1-8), 2009: 29(1-8), 2010: 30(1-8), 2011: 31(1-8), 2012: 32(1-8), 2013: 33(1-8), 2014: 34(1, 3), 2015: 35(1-8), 2016: 36(1-8), 2017: 37(1-8), 2018: 38(1-8), 2019: 39(1-8), 2020: 40(1-8), 2021: 41(1-8), 2022: 42(1-8), 2023: 43(1-2)
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Portico
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Preserved
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2026-04-23
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Preserved : 2024: 44(1), 2025: 45(1), 2026: 46(1)
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LOCKSS Archive
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Preserved
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2026-04-27
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1 to 44
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CLOCKSS Archive
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Preserved
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2026-04-27
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ahead-of-print to 45
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LOCKSS Archive
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In Progress
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2026-04-27
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45, 46
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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 (2 to 6); 3 (1 to 8); 4 (1 to 8); 17 (sup1, 1 to 6); 18 (1 to 6); 19 (sup1, 1 to 6); 21 (1 to 6); 22 (1 to 6); 23 (sup1, 1 to 6); 24 (sup1, 1 to 8); 25 (sup1, 1 to 8); 26 (sup1, 1 to 8); 27 (sup1, 1 to 8); 28 (1 to 8); 29 (1 to 8); 31 (sup1, 1 to 8); 32 (1 to 8); 33 (1 to 8); 34 (1 to 8); 35 (1 to 8); 36 (1 to 8); 37 (1 to 8); 38 (1 to 8); 39 (1 to 8); 41 (1 to 8); 42 (1 to 8); 43 (1, 2); 44 (1)
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