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Scholars Portal
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Preserved
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2026-03-19
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Preserved : 1 (1 to 4); 2 (1 to 4); 3 (1 to 4); 4 (1 to 4); 5 (1 to 4); 6 (1 to 4); 7 (1 to 4); 8 (1 to 4); 9 (1 to 4); 10 (1 to 4); 11 (1 to 4); 12 (1 to 4); 13 (1 to 4); 14 (1 to 4); 15 (1 to 4); 16 (1 to 4); 17 (1 to 4); 18 (1 to 4); 19 (1 to 4); 20 (1 to 6); 21 (1 to 6); 22 (1, 2, 3-4, 5-6); 23 (1 to 4); 24 (sup1, 1 to 4); 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 3, 4-5, 6); 32 (1 to 6); 33 (1, 2, 3-4, 5, 6); 34 (1 to 6); 35 (1, 2-3, 4 to 7, 8-9, 10); 36 (1 to 5, 6-7, 8 to 10); 37 (1-2, 3 to 10); 38 (sup1, 1 to 10); 39 (sup1, 1 to 10); 40 (sup1, 1 to 10); 41 (sup1, 1 to 10); 42 (1 to 10); 43 (S2, 1 to 10); 44 (sup1, 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, 3 to 10); 55 (1 to 9)
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Internet Archive
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Preserved
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2025-08-08
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1 to 26
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Portico
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Preserved
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2026-05-07
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Preserved : 1973: 2(1)
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Portico
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Preserved
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2026-05-07
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Preserved : 1975/1976: 4(1-4)
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Portico
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Preserved
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2026-05-07
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Preserved : 1997: 27(6)
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Portico
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Preserved
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2026-05-07
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Preserved : 2001: 31(2-3)
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Portico
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Preserved
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2026-05-07
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Preserved : 2004: 34(1, 3-4)
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Portico
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Preserved
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2026-05-07
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Preserved : 2008: 38(9)
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Portico
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Preserved
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2026-05-07
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Preserved : 2009: 39(S 2, S 3, 8-10), 2010: 40(1, S 1, 2, S 2, 3, S 3, 4-10), 2011: 41(1, S 1, 2, S 2, 3-10), 2012: 42(1, 3-10), 2011/2013: 43(1, S 1, 2, S 2, 3-10), 2013/2014: 44(1, S 1, 2, S 2, 3, S 3, 4, S 4, 5, S 5, 6-10), 2015: 45(1-7)
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LOCKSS Archive
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Preserved
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2026-05-04
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20 to 54
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CLOCKSS Archive
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Preserved
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2026-05-04
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ahead-of-print, 20 to 55
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LOCKSS Archive
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In Progress
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2026-05-04
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55, 56
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Portico
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Preserved
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2026-05-07
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Preserved : 1997: 27(1-6), 1998: 28(1-6), 1999: 29(1-6), 2000: 30(1-6), 2001/2002: 31(1-6), 2002: 32(1-6), 2003: 33(1-6), 2004: 34(1-6), 2005: 35(1-10), 2006: 36(1-10), 2007: 37(1-10), 2008: 38(1-10), 2008: 38 Suppl 1, 2008: 38 Suppl 2, 2009: 39(1-3), 2009: 39 Suppl 1, 2010: 40(1-10), 2011: 41(1-10), 2012: 42(1-10), 2013: 43(1-10), 2014: 44(1-10), 2015: 45(1-10), 2016: 46(1-10), 2017: 47(1-10), 2018: 48(1-10), 2019: 49(1-10), 2020: 50(1-10), 2021: 51(1-10), 2022: 52(1-10), 2023: 53(1-10), 2024: 54(1-5, 7-10), 2025: 55(1-10), 2026: 56(1)
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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 : 3 (1 to 6); 4 (sup1, 1 to 9); 5 (1 to 9); 27 (1 to 6); 28 (1 to 6); 29 (1 to 6); 31 (1 to 3, 4-5, 6); 32 (1 to 6); 33 (1, 2, 3-4, 5, 6); 34 (1 to 6); 35 (1, 2-3, 4 to 7, 8-9); 36 (1 to 5, 6-7, 8, 9); 37 (1-2, 3 to 9); 38 (sup1, 1 to 9); 39 (sup1, 1 to 9); 41 (sup1, 1 to 9); 42 (1 to 9); 43 (sup1, 1 to 9); 44 (sup1, 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 7, 9); 54 (1 to 9); 55 (2)
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