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