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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 10 (5); 23 (, 1 to 6); 24 (, 1 to 6); 25 (, 1 to 6); 26 (, 1 to 6); 27 (, 1 to 6); 28 (, 1 to 6); 29 (, 1 to 6); 30 (, 1 to 6); 31 (, 1 to 15); 32 (, 1 to 15); 33 (, 1 to 15); 34 (, 1 to 15); 35 (, 1 to 12); 36 (, 1 to 12); 37 (, 1 to 3, 4-5, 6 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 12); 44 (, 1 to 12); 45 (, 1 to 12); 46 (, 1 to 12); 47 (, 1 to 12); 48 (, 1 to 12); 49 (, 1, 8); 50 (, 3, 5 to 12); 51 (, 1 to 12); 52 (, 1 to 12); 53 (, 1 to 12); 54 (, 1, 3 to 12); 55 (, 1 to 6); 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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In Progress
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2026-02-09
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1 to 50
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CLOCKSS Archive
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Preserved
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2026-02-09
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1 to 55
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Portico
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Preserved
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2026-02-12
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Preserved : 1984: 1(1-6), 1985: 2(1-6), 1986: 3(1-6), 1987: 4(1-6), 1988: 5(1-6), 1988: 6(1-6), 1989: 7(1-6), 1989: 8(1-6), 1990: 9(1-6), 1990: 10(1-6), 1991: 11(1-6), 1991: 12(1-6), 1992: 13(1-6), 1992: 14(1-6), 1993: 15(1-6), 1993: 16(1-6), 1994: 17(1-6), 1994: 18(1-6), 1995: 19(1-6), 1995: 20(1-6), 1996: 21(1-6), 1996: 22(1-6), 1997: 23(1-6), 1997: 24(1-6), 1998: 25(1-6), 1998: 26(1-6), 1999: 27(1-6), 1999: 28(1-6), 2000: 29(1-6), 2000: 30(1-6), 2001: 31(1-15), 2002: 32(1-15), 2003: 33(1-15), 2004: 34(1-15), 2005: 35(1-12), 2006: 36(1-12), 2007: 37(1-12), 2008/2012: 38(1-12), 2009: 39(1-12), 2010: 40(1-12), 2011: 41(1-12), 2012: 42(1-12), 2013: 43(1-12), 2014: 44(1-12), 2015: 45(1, 3-12), 2016: 46(1-12), 2017: 47(1-9, 11-12), 2018: 48(1-12), 2018/2019: 49(1-2, S 2, 3-12), 2019/2020: 50(1-12), 2021: 51(1, S 1, 2-12), 2022: 52(1, S 1, 2-12), 2023: 53(1, S 1, 2-12), 2024: 54(1-12), 2025: 55(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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48 (S1, 1 to 12); 49 (1, S1, 2, S2, 3 to 12); 50 (1 to 12); 51 (S1, 1 to 12); 52 (1, S1, 2 to 12); 53 (S1, 1 to 12); 54 (1 to 12)
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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 : 5 (1 to 9, 11, 12); 48 (Suppl 1, 1 to 9, 11, 12); 49 (Suppl 1, 1 to 9, 11, 12); 51 (Suppl 1, 1 to 9, 11, 12); 52 (Suppl 1, 1 to 9, 11, 12); 53 (Suppl 1, 1 to 9, 11, 12); 54 (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 : 5 (1 to 9, 11, 12); 48 (Suppl 1, 1 to 9, 11, 12); 49 (Suppl 1, 1 to 9, 11, 12); 51 (Suppl 1, 1 to 9, 11, 12); 52 (Suppl 1, 1 to 9, 11, 12); 53 (Suppl 1, 1 to 9, 11, 12); 54 (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 : 24 (4); 25 (2, 3); 34 (14); 36 (2); 37 (4-5, 11); 38 (2-4); 39 (9, 12); 40 (5, 10); 41 (9); 42 (1, 2, 5, 6, 8-12); 43 (1-9, 11, 12); 44 (supplement-1, 1-12); 45 (supplement-1, 1-12); 46 (1-12); 47 (supplement-1, 1-12); 48 (supplement-1, 1-12); 49 (supplement-1, 1-12)
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