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