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Portico
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Preserved
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2026-02-12
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Preserved : 1982: 1(6), 1983: 2(1-2, 4, 6), 1984: 3(2-6), 1985: 4(1, 3, 5-6), 1986: 5(1-4, 6), 1987: 6(1-3)
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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 7 (1 to 6); 8 (, 1 to 12); 9 (, 1 to 12); 10 (, 1 to 12); 11 (, 1 to 12); 12 (, 1 to 12); 13 (, 1 to 12); 14 (, 1 to 12); 15 (, 1 to 12); 16 (, 1 to 12); 17 (, 1 to 12); 18 (, 1 to 12); 19 (, 1 to 12); 20 (, 1 to 12); 21 (, 1 to 12); 22 (, 1 to 12); 23 (, 1 to 12); 24 (, 1 to 12); 25 (, 1 to 12); 26 (, 1 to 12); 27 (, 1 to 12); 28 (, 1 to 12); 29 (, 1 to 12); 30 (, 1 to 12); 31 (, 1 to 12); 32 (, 1 to 12); 33 (, 1 to 12); 34 (, 1 to 12); 35 (, 1 to 12); 36 (, 1 to 12); 37 (, 1 to 12); 38 (, 1 to 12); 39 (, 1 to 12); 40 (, 1 to 12); 41 (, 1 to 12); 42 (, 1 to 12); 43 (, 1, 2, 4 to 12); 44 (, 1 to 7); 1988; 1989; 1990; 1991; 1992; 1993; 1994; 1995; 1996; 1997; 1998; 1999; 2000; 2001; 2002; 2003; 2004; 2005; 2006; 2007; 2008; 2009; 2010; 2011; 2012; 2013; 2014; 2015; 2016; 2017; 2018; 2019; 2020; 2021; 2022; 2023; 2024; 2025
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LOCKSS Archive
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Preserved
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2026-02-09
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1 to 37
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CLOCKSS Archive
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Preserved
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2026-02-09
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1 to 44
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LOCKSS Archive
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In Progress
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2026-02-09
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38
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Portico
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Preserved
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2026-02-12
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Preserved : 1988: 7(1-5), 1989: 8(1-3, 7-8), 1990: 9(5-6, 9-10, 12), 1991: 10(1, 3-6, 12), 1992: 11(1-2, 5-6, 9-10, 12), 1993: 12(1-2, 6-8, 10-12), 1994: 13(S 1, 2, S 2, 4-9, 11), 1995: 14(1-2, 4, 7-8, 10, 12), 1996: 15(1-6, 8-10, 12), 1997: 16(2-11), 1998: 17(1-2, 5-6, 8-9, 12), 1999: 18(1-10, 12), 2000: 19(2, 4-7, 10-12), 2001: 20(2-3, 5-12), 2002: 21(1-8, 10, 12), 2003: 22(1, 5, 7, 9-10, 12), 2004: 23(1-6, 8, 11-12), 2005: 24(1, 3, 6-12), 2006: 25(1-12), 2007: 26(1-2, 4-11), 2008: 27(1-12), 2009: 28(1-12), 2010: 29(1-12), 2011: 30(1-12), 2012: 31(1-12), 2013: 32(1-12), 2014: 33(1-10, 12), 2015: 34(1-12), 2016: 35(1-12), 2017: 36(1-12), 2018: 37(1-12), 2019: 38(1-12), 2020: 39(1-12), 2021: 40(1-12), 2022: 41(1-12), 2023: 42(1, 3-12), 2024: 43(1-11), 2025: 44(1-2, 4, 6-12), 2026: 45(1)
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Library of Congress
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Preserved
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2025-04-07
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36 (1); 37 (3 to 12); 38 (1 to 12); 39 (1 to 12); 40 (1 to 12); 41 (1 to 12); 42 (1 to 12); 43 (1 to 10)
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National Digital Preservation Program, China
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Preserved
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2025-10-23
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Preserved : 2 (1 to 9, 11, 12); 3 (1 to 9, 11, 12); 4 (1 to 9, 11, 12); 16 (1 to 9, 11, 12); 17 (1 to 9, 11, 12); 18 (1 to 9, 11, 12); 19 (1 to 9, 11, 12); 21 (1 to 9, 11, 12); 22 (1 to 9, 11, 12); 23 (1 to 9, 11, 12); 24 (1 to 9, 11, 12); 25 (1 to 9, 11, 12); 26 (1 to 9, 11, 12); 27 (1 to 9, 11, 12); 28 (1 to 9, 11, 12); 29 (1 to 9, 11, 12); 31 (1 to 9, 11, 12); 32 (1 to 9, 11, 12); 33 (1 to 9, 11, 12); 34 (1 to 9, 11, 12); 35 (1 to 9, 11, 12); 36 (1 to 9, 11, 12); 37 (1 to 9, 11, 12); 38 (1 to 9, 11, 12); 39 (1 to 9, 11, 12); 41 (1 to 9, 11, 12); 42 (1 to 9, 11, 12); 43 (1 to 9, 11, 12)
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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 9, 11, 12); 3 (1 to 9, 11, 12); 4 (1 to 9, 11, 12); 16 (1 to 9, 11, 12); 17 (1 to 9, 11, 12); 18 (1 to 9, 11, 12); 19 (1 to 9, 11, 12); 21 (1 to 9, 11, 12); 22 (1 to 9, 11, 12); 23 (1 to 9, 11, 12); 24 (1 to 9, 11, 12); 25 (1 to 9, 11, 12); 26 (1 to 9, 11, 12); 27 (1 to 9, 11, 12); 28 (1 to 9, 11, 12); 29 (1 to 9, 11, 12); 31 (1 to 9, 11, 12); 32 (1 to 9, 11, 12); 33 (1 to 9, 11, 12); 34 (1 to 9, 11, 12); 35 (1 to 9, 11, 12); 36 (1 to 9, 11, 12); 37 (1 to 9, 11, 12); 38 (1 to 9, 11, 12); 39 (1 to 9, 11, 12); 41 (1 to 9, 11, 12); 42 (1 to 9, 11, 12); 43 (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 : 17 (5); 18 (3-6); 20 (8-12); 21 (1-12); 22 (1-5); 23; 24 (9-12); 25 (1, 4-12); 26 (1-4, 6-12); 27 (1-12); 28 (1-12); 29 (1-12); 30 (1-12); 31 (1-12); 32 (1-12); 33 (1-12); 34 (1-12); 35 (1-12); 36 (1-12); 37 (1-12); 38 (1-11); 259 (C)
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