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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, 2, 3-4); 2 (1 to 4); 3 (1, 2, 3-4); 4 (1 to 4); 5 (1 to 4); 6 (1 to 3); 7 (1 to 3); 8 (1 to 3); 9 (1 to 3); 10 (1 to 3); 11 (1 to 4); 12 (sup1, 1 to 4); 13 (1 to 4); 14 (1 to 4); 15 (1 to 4); 16 (sup1, 1 to 4); 17 (1 to 4); 18 (1 to 4); 19 (1 to 4); 20 (1 to 4); 21 (1 to 4); 22 (1 to 4); 23 (1 to 4); 24 (1 to 4); 25 (1, 2, 3-4); 26 (1 to 4); 27 (1 to 4); 28 (sup1, 1 to 4); 29 (1 to 4); 30 (1 to 4); 31 (sup1, 1 to 4); 32 (1 to 4); 33 (1 to 4); 34 (1 to 4); 35 (1 to 4); 36 (1 to 4); 37 (1 to 4); 38 (1 to 4); 39 (1 to 4); 40 (1 to 4); 41 (1 to 4); 42 (1 to 4); 43 (1 to 4); 44 (sup1, 1); 45; 46
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Portico
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Preserved
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2026-04-16
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Preserved : 1989: 10(2)
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Portico
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Preserved
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2026-04-16
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Preserved : 1995: 16(2)
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Portico
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Preserved
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2026-04-16
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Preserved : 2005: 26(4)
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Portico
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Preserved
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2026-04-16
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Preserved : 2009: 30(4), 2010: 31(1, S 1, 3-4), 2011: 32(1-4), 2012: 33(1-4), 2013: 34(1-4), 2014: 35(1-4), 2015: 36(1-2)
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LOCKSS Archive
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Preserved
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2026-04-13
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1 to 45
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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 to 46
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LOCKSS Archive
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In Progress
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2026-04-13
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46, 47
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Portico
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Preserved
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2026-04-16
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Preserved : 1991: 12(sup1)
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Portico
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Preserved
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2026-04-16
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Preserved : 1997: 18(4)
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Portico
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Preserved
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2026-04-16
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Preserved : 2007/2008: 29(1-4), 2009: 30(1-3)
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Portico
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Preserved
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2026-04-16
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Preserved : 2011: 32(1-4), 2012: 33(1-4), 2013: 34(1-4), 2014: 35(1-4), 2015: 36(1-4), 2016: 37(1-4), 2017: 38(1-4), 2018: 39(1-4), 2019: 40(1-4), 2020: 41(1-4), 2021: 42(1-4), 2022: 43(1-4), 2023: 44(1, sup1), 2024: 45(1), 2025: 46(1), 2026: 47(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 : 2 (1 to 4); 3 (1 to 4); 4 (1 to 4); 18 (1 to 4); 19 (1 to 4); 21 (1 to 4); 22 (1 to 4); 23 (1 to 4); 24 (1 to 4); 25 (1, 2, 3-4); 26 (1 to 4); 27 (1 to 4); 28 (sup1, 1 to 4); 29 (1 to 4); 31 (sup1, 1 to 4); 32 (1 to 4); 33 (1 to 4); 34 (1 to 4); 35 (1 to 4); 36 (1 to 4); 37 (1 to 4); 38 (1 to 4); 39 (1 to 4); 41 (1 to 4); 42 (1 to 4); 43 (1 to 4); 44 (S1, 1); 45
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