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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 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 (, 1, 2); 36 (, 1, 2); 37 (, 1, 2); 38 (, 1, 2); 39 (, 1, 2); 40 (, 1, 2); 41 (, 1, 2); 42 (, 1, 2); 43 (, 1, 2); 44 (, 1, 2); 45 (, 1, 2); 46 (, 1, 2); 47 (, 1, 2); 48 (, 1, 2); 49 (, 1, 2); 50 (, 1, 2); 51 (, 1, 2); 52 (, 1); 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 47
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Portico
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Preserved
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2026-02-12
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Preserved : 1974: 1(1), 1975: 2(2), 1976: 3(3), 1977: 4(4), 1978: 5(5), 1979: 6(6), 1980: 7(7-8), 1981: 8(9-10), 1982: 9(11-12), 1983: 10(13-14), 1984: 11(15-16), 1985: 12(17-18), 1986: 13(19-20), 1987: 14(21-22), 1988: 15(23-24), 1989: 16(25-26), 1990: 17(27-28), 1991: 18(29-30), 1992: 19(1-2), 1993: 20(1-2), 1994: 21(1-2), 1995: 22(1-2), 1996: 23(1-2), 1997: 24(1-2), 1998: 25(1-2), 1999: 26(1-2), 2000: 27(1-2), 2001: 28(1-2), 2002: 29(1-2), 2003: 30(1-2), 2004: 31(1-2), 2005: 32(1-2), 2006: 33(1-2), 2007: 34(1-2), 2008: 35(1-2), 2009: 36(1-2), 2010: 37(1-2), 2011: 38(1-2), 2012: 39(1-2), 2013: 40(1-2), 2014: 41(1-2), 2015: 42(1-2), 2016: 43(1-2), 2017: 44(1-2), 2018: 45(1-2), 2019: 46(1-2), 2020: 47(1-2), 2021: 48(1-2), 2022: 49(1-2), 2023: 50(1-2), 2024: 51(1-2), 2025: 52(1-2), 2026: 53(1)
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CLOCKSS Archive
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Preserved
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2026-02-09
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12, 18, 24 to 53
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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 (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 (1); 36 (2); 37 (1, 2); 38 (1, 2); 39 (1, 2); 40 (1, 2); 41 (1, 2); 42 (1, 2); 43 (1, 2); 44 (1, 2); 45 (1, 2); 46 (1, 2)
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Library of Congress
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Preserved
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2025-04-07
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43 (1, 2); 44 (1, 2); 45 (1, 2); 46 (1, 2); 47 (1, 2); 48 (1, 2); 49 (1, 2); 50 (1, 2); 51 (1, 2); 52 (1)
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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 : 45 (1, 2); 46 (1, 2); 47 (1, 2); 51 (1, 2)
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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 : 45 (1, 2); 46 (1, 2); 47 (1, 2); 51 (1, 2)
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