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Scholars Portal
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Preserved
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2026-03-19
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Preserved : 51 (5-6); 52 (2-3, 10-11); 53 (1 to 12); 55 (1-3, 4, 5-6, 7, 8-10, 11, 12); 56 (1-4, 5, 6, 7-9, 10-11, 12); 57 (1, 2-4, 5, 9 to 12); 58 (1 to 12); 59 (1 to 12); 60 (1 to 9, 11, 12); 61 (1 to 3, 6 to 12); 62 (1 to 12); 63 (1, 3 to 6, 7-8, 9 to 12); 64 (1 to 12); 65 (1 to 12); 66 (1 to 5, 6-7, 8 to 12); 67 (1 to 12); 68 (1 to 12); 69 (1 to 12); 70 (1 to 12); 71 (1 to 3)
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CLOCKSS Archive
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Preserved
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2026-04-06
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ahead-of-print, 51 to 71
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Portico
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Preserved
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2026-04-02
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Preserved : 1997: 32(1-4), 1997: 33(1-4), 1997: 34(1-4), 1998: 35(1-4), 1998: 36(1-4), 1998: 37(1-4), 1999: 38(1-4), 1999: 39(1-4), 1999/2000: 40(1-4), 2000: 41(1-4), 2000: 42(1-4), 2000/2001: 43(1-4), 2001: 44(1-4), 2001: 45(1-4), 2001: 46(1-4), 2002: 47(1-12), 2003: 48(1-12), 2004: 49(1-3, 5-6, 10-12, 14-15), 2005: 50(1-15), 2006: 51(1-12), 2007: 52(1-12), 2008: 53(1-12), 2009: 54(1-12), 2010: 55(1-12), 2011: 56(1-12), 2012: 57(1-12), 2013: 58(1-12), 2014: 59(1-12), 2015: 60(1-12), 2016: 61(1-12), 2017: 62(1-12), 2018: 63(1-12), 2019: 64(1-12), 2020: 65(1-12), 2021: 66(1-12), 2022: 67(1-12), 2023: 68(1-12), 2024: 69(1-12), 2025: 70(1-12), 2026: 71(1-3)
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LOCKSS Archive
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Preserved
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2026-04-06
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51 to 69
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CLOCKSS Archive
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Preserved
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2026-04-06
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53 to 62
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LOCKSS Archive
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In Progress
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2026-04-06
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70, 71
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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 : 6 (1 to 9, 11, 12); 7 (1 to 4); 51 (1 to 4, 5-6, 7, 8-11, 12); 52 (1, 2-3, 4 to 9, 12); 53 (1 to 9, 11, 12); 54 (1, 2, 3-4, 5 to 9, 11, 12); 55 (1-3, 4, 5-6, 7, 8-1, 11, 12); 56 (1-4, 5, 6, 7-9, 12); 57 (1, 2-4, 5, 6, 7-8, 9, 11, 12); 58 (1 to 9, 11, 12); 59 (1 to 9, 11, 12); 61 (1 to 9, 11, 12); 62 (1 to 9, 11, 12); 63 (1 to 6, 7-8, 9, 11, 12); 64 (1 to 9, 11, 12); 65 (1 to 9, 11, 12); 66 (1 to 5, 6-7, 8, 9, 11, 12); 67 (1 to 9, 11, 12); 68 (1 to 9, 11, 12); 69 (1 to 9, 11, 12)
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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 (1-3, 4); 4 (1-4); 5 (1, 2-4); 6 (1, 2-4); 7 (1-3, 4); 8 (1-2, 3-4); 9 (1, 2-3, 4); 10 (1, 2-3, 4); 11 (1, 2, 3-4); 12 (1-4); 13 (3-4); 14 (1-4); 15 (2-4); 16 (1, 2-3, 4); 17 (1-2, 3-4); 18 (1-2, 3-4); 19 (1-2, 3, 4); 20 (1-4); 21 (3-4); 22 (1-2, 3-4); 23 (1-2, 3-4); 24 (1-2, 3-4); 25 (1-4); 26 (1-2, 3, 4); 27 (1-4); 28 (1-4); 29 (1-4); 30 (1-4); 31 (1-4); 32 (1-4); 33 (1-4); 34 (3, 4); 35 (1-4); 36 (1-4); 37 (1-4); 38 (2-4); 39 (1-4); 40 (1-4); 41 (1-4); 42 (1-4); 43 (1, 2, 3-4); 44 (1-4); 45 (1-4); 46 (1-4); 47 (1-12); 48 (1-12); 49 (1-6, 7-9, 10-12, 14, 15); 50 (1-6, 7-11, 12-15); 51 (1-4, 5-6, 7, 8-11, 12); 52 (1, 2-3, 4-9, 10-11, 12); 53 (1-12)
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Library of Congress
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Preserved
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2025-04-07
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55 (1-3, 4, 5-6, 7, 8-10, 11, 12); 56 (1-4, 5 to 7-9, 10-11, 12); 57 (1, 2-4, 5 to 7-8, 9 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 7-8, 9 to 12); 64 (1, 2, 4 to 12); 65 (1 to 12); 66 (1 to 6-7, 8 to 12); 67 (1 to 12); 68 (1 to 12); 69 (1 to 12)
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