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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; 5; 6; 7; 8; 9; 10; 11; 12; 13; 14; 15 (2); 16 (1 to 3); 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, 2, 4); 24 (1 to 4); 25 (1 to 4); 26 (1 to 4); 27 (1 to 4); 28 (1 to 4); 29 (1 to 4); 30 (1 to 4); 31 (1 to 4); 32 (1 to 4); 33 (1 to 4); 34 (1 to 4); 35 (1 to 4); 36 (1)
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CLOCKSS Archive
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In Progress
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2026-04-06
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1 to 14, 16, 27 to 36
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LOCKSS Archive
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In Progress
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2026-04-06
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1 to 12, 35, 36
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Portico
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Preserved
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2026-04-02
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Preserved : 1991: 1(1), 1992: 2(1), 1993: 3(1), 1994: 4(1), 1995: 5(1), 1996: 6(1), 1997: 7(1), 1998: 8(1), 1999: 9(1), 2000: 10(1), 2001: 11(1), 2002: 12(1), 2003: 13(1), 2004: 14(1), 2005: 15(1-2), 2006: 16(1-3), 2007: 17(1-4), 2008: 18(1-4), 2009: 19(1-4), 2010: 20(1-4), 2011: 21(1-4), 2012: 22(1-4), 2013: 23(1-4), 2014: 24(1-4), 2015: 25(1-4), 2016: 26(1-4), 2017: 27(1-4), 2018: 28(1-4), 2019: 29(1-4), 2020: 30(1-4), 2021: 31(1-4), 2022: 32(1-4), 2023: 33(1-4), 2024: 34(1-4), 2025: 35(1-4), 2026: 36(1)
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LOCKSS Archive
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Preserved
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2026-04-06
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13 to 34
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CLOCKSS Archive
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Preserved
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2026-04-06
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15, 17 to 26
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Library of Congress
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Preserved
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2025-04-07
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20 (1 to 4); 21 (1 to 4); 22 (1 to 4); 23 (1 to 4); 24 (1 to 4); 25 (1 to 4); 26 (1 to 4); 27 (1 to 4); 28 (1 to 4); 29 (1 to 4); 30 (1 to 4); 31 (1 to 4); 32 (1 to 4); 33 (1 to 4); 34 (1 to 4)
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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; 5; 6; 7; 8; 9; 10; 11; 12; 13; 14; 15 (2); 16 (1-3); 17 (1-4); 18 (1-4); 19 (1-4); 20 (1-4); 21 (1, 2, 4); 22 (1-4); 23 (1-4); 24 (1-4); 25 (1, 2, 4); 26 (1-4); 27 (1-4); 28 (1-4); 29 (1-4)
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British Library
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Preserved
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2019-09-18
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Preserved : 24 (1 to 4), 25 (1 to 4), 26 (1 to 4), 27 (1 to 4), 28 (1 to 3)
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