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Portico
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Preserved
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2026-02-12
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Preserved : 1985: 1(1-2), 1986: 2(1-4), 1987: 3(1-4), 1988: 4(1-4), 1989: 5(1-4), 1990: 6(1-4), 1991: 7(1-4), 1992: 8(1-4), 1993: 9(1-4), 1994: 10(1-4), 1995: 11(1-4), 1996: 12(1-4), 1997: 13(1-4), 1998: 14(1-2), 1999: 15(1-2), 2000: 16(1-2), 2001: 17(1-2), 2005: 18(1-2), 2006: 19(1-2), 2007: 20(1-2), 2008: 21(1-2), 2008/2009: 22(1-2), 2010: 23(1-2), 2011: 24(1-2), 2012: 25(1-2), 2013: 26(1-2), 2014: 27(1-2), 2015: 28(1-2), 2016: 29(1-2), 2017: 30(1-2), 2018: 31(1-2), 2019: 32(1-2), 2020: 33(1-2), 2021: 34(1-2)
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Portico
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Preserved
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2026-02-12
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Preserved : 2022: 35(2), 2023: 36(1-2), 2024: 37(1-2), 2025: 38(1-2)
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LOCKSS Archive
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In Progress
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2026-02-09
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1985 to 1999
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CLOCKSS Archive
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In Progress
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2026-02-09
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1985 to 2001, 2005 to 2020
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LOCKSS Archive
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Preserved
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2026-02-09
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2000, 2001, 2005 to 2020
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Library of Congress
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Preserved
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2025-04-07
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1 (1-2); 2 (1 to 3-4); 3 (1-2, 3-4); 4 (1-2, 3-4); 5 (1-2, 3-4); 6 (1 to 3-4); 7 (1 to 4); 8 (1 to 3-4); 9 (1-2, 3-4); 10 (1-2, 3-4); 11 (1-4); 12 (1-3, 4); 13 (1-4); 14 (1, 2); 15 (1-2); 16 (1-2); 17 (1-2); 18 (1-2); 19 (1-2); 20 (1-2); 21 (1, 2); 22 (1, 2); 23 (1, 2); 24 (1, 2); 25 (1, 2); 26 (1, 2); 27 (1, 2); 28 (1, 2); 29 (1, 2); 30 (1, 2); 31 (1, 2); 32 (1, 2); 33 (1, 2); 34 (1, 2); 35 (2); 36 (1, 2); 37 (1)
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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 : 2 (1, 2, 3-4); 3 (1-2, 3-4); 4; 5 (1-2, 3-4); 6 (1, 2, 3-4); 7 (2-4); 8 (1, 2, 3-4); 9 (1-2, 3-4); 10 (1-2, 3-4); 12 (1-3, 4); 13 (1-4); 14 (2); 15 (1-2); 16; 17; 18; 19; 20; 21 (2)
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