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Scholars Portal
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Preserved
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2026-03-19
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Preserved : 18 (1); 19 (2 to 4); 20 (sup1, 1 to 6); 21 (1 to 6); 22 (1 to 6); 23 (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 to 6); 32 (1 to 6); 33 (1 to 6); 34 (1 to 6); 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 10); 43 (1 to 10); 44 (1 to 10); 45 (sup1, 1 to 10); 46 (sup1, 1 to 10); 47 (1 to 10); 48 (1 to 10); 49 (1 to 10); 50 (1 to 10); 51 (1 to 10); 52 (1 to 10); 53 (1 to 10); 54 (1 to 9); 55 (1 to 12); 56 (1 to 12); 57 (1 to 12); 58 (1 to 12); 59 (1 to 12); 60 (1 to 12); 61 (1 to 12); 62 (1 to 12); 63 (1 to 3)
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Internet Archive
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Preserved
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2025-08-08
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1 to 22
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Portico
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Preserved
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2026-04-16
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Preserved : 1987: 24(2)
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Portico
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Preserved
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2026-04-16
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Preserved : 2009: 46(9-10), 2010: 47(1-6, 8-10), 2011: 48(2-10), 2012: 49(1-10), 2013: 50(1-10), 2013/2014: 51(1-10), 2014: 52(1-6)
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LOCKSS Archive
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Preserved
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2026-04-13
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18 to 61
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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, 18 to 62
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LOCKSS Archive
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In Progress
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2026-04-13
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62, 63
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Portico
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Preserved
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2026-04-16
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Preserved : 1997: 34(1-6), 1998: 35(1-8), 1999: 36(1-8), 2000: 37(1-8), 2001: 38(1-8), 2002: 39(1-8), 2003: 40(1-8), 2004: 41(1-8), 2005: 42(1-10), 2006: 43(1-10), 2007: 44(1-10), 2008: 45(1, Suppl 1, 2-10), 2009: 46(1, Suppl 1, 2-10), 2010: 47(1-10), 2011: 48(1-10), 2012: 49(1-10), 2013: 50(1-10), 2014: 51(1-10), 2015: 52(1-10), 2016: 53(1-10), 2017: 54(1-10), 2018: 55(1-12), 2019: 56(1-12), 2020: 57(1-12), 2021: 58(1-12), 2022: 59(1-12), 2023: 60(1-12), 2024: 61(1-12), 2025: 62(1-12), 2026: 63(1-4)
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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 : 4 (1 to 8); 5 (1 to 9); 6 (1 to 9, 11, 12); 34 (1 to 6); 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 9); 43 (1 to 9); 44 (1 to 9); 45 (sup1, 1 to 9); 46 (sup1, 1 to 9); 47 (1 to 9); 48 (1 to 9); 49 (1 to 9); 51 (1 to 9); 52 (1 to 9); 53 (1 to 9); 54 (1 to 9); 55 (1 to 9, 11, 12); 56 (1 to 9, 11, 12); 57 (1 to 9, 11, 12); 58 (1 to 9, 11, 12); 59 (1 to 9, 11, 12); 61 (1 to 9, 11, 12); 62 (1 to 3, 5)
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