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Scholars Portal
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Preserved
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2026-03-19
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Preserved : 1 (3-4); 2 (1-2, 3, 4); 3 (1-4); 4 (3-4); 5 (1-4); 6; 7 (2, 3-4); 8 (1-4); 9; 10; 11 (3, 4); 12 (1, 2-4); 13 (1-4); 14 (2, 3-4); 15 (1-4); 16 (2 to 4); 17 (1-4); 18 (2, 3-4); 19 (1-4); 20 (4-6); 21 (1-5, 6); 22 (1, 2, 4-6); 23 (1, 2, 3-4); 24 (1, 2, 3-4); 28 (1); 29 (3, 4); 30 (1); 31 (2 to 4); 32 (2 to 4); 33 (1 to 6); 34 (1 to 6); 35 (1 to 6); 36 (1 to 6); 37 (1 to 6); 38 (1 to 6); 39 (2 to 6); 40 (1 to 6); 41 (1 to 6); 42 (1 to 8); 43 (1 to 8); 44 (1 to 8); 45 (1, 3 to 8); 46 (1 to 8); 47 (1, 2)
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CLOCKSS Archive
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Preserved
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2026-05-18
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ahead-of-print to 46
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Portico
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Preserved
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2026-05-14
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Preserved : 1995: 15(1-4), 1996/1997: 16(1-4), 1997: 17(1), 1998: 18(1-4), 1998: 19(1), 1999/2000: 20(1, 4-6), 2000: 21(1-6), 2001/2002: 22(1-2, 4-6), 2002/2003: 23(1-4), 2003: 24(1-4), 2004: 25(1-4), 2004/2005: 26(1-2), 2006: 27(1-4), 2007: 28(1-4), 2008: 29(1-4), 2009: 30(1-4), 2010: 31(1-4), 2011: 32(1-4), 2012: 33(1-6), 2013: 34(1-6), 2014: 35(1-6), 2015: 36(1-6), 2016: 37(1-6), 2017: 38(1-6), 2018: 39(1-6), 2019: 40(1-6), 2020: 41(1-6), 2021: 42(1-8), 2022: 43(1-8), 2023: 44(1-8), 2024: 45(1-8), 2025: 46(1-8), 2026: 47(1-3)
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LOCKSS Archive
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Preserved
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2026-05-18
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1 to 45
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CLOCKSS Archive
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Preserved
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2026-05-18
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29, 31 to 38
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LOCKSS Archive
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In Progress
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2026-05-18
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46, 47
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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 (4 to 6); 41 (2 to 6); 42 (1 to 8); 43 (1 to 8); 44 (1 to 8); 45 (1 to 8); 46 (1 to 3)
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National Library of the Netherlands
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Preserved
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2024-12-15
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Preserved : 1 (1-2, 3-4); 2 (1-2, 3, 4); 3 (1-4); 4 (3-4); 5 (1-4); 6; 7 (2, 3-4); 8 (1-4); 9; 10; 11 (3, 4); 12 (1, 2-4); 13 (1-4); 14 (2, 3-4); 15 (1-4); 16 (2-4); 17 (1-4); 18 (2, 3-4); 19 (1-4); 20 (4-6); 21 (1-5, 6); 22 (1, 2, 4-6); 23 (1, 2, 3-4); 24 (2, 3-4); 25 (1-4); 27 (2, 4); 28 (1, 3, 4); 29 (1-4)
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Library of Congress
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Preserved
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2025-04-07
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31 (2 to 4); 32 (1 to 4); 33 (1 to 6); 34 (1 to 6); 35 (1 to 6); 36 (1 to 6); 37 (1 to 6); 38 (1 to 6); 39 (1 to 6); 40 (1 to 6); 41 (1 to 6); 42 (1 to 8); 43 (1 to 8); 44 (1 to 8); 45 (1 to 8)
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