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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 9 (1 to 5); 10 (, 1 to 5); 11 (, 1 to 5); 12 (, 1 to 5); 13 (, 1 to 5); 14 (, 1 to 5); 15 (, 1 to 6); 16 (, 1 to 6); 17 (, 1 to 6); 18 (, 1 to 8); 19 (, 1 to 10); 20 (, 1 to 10); 21 (, 1 to 12); 22 (, 1 to 12); 23 (, 1 to 12); 24 (, 1 to 12); 25 (, 1 to 12); 26 (, 3, 5, 15); 27 (, 5, 7, 8); 28 (, 14); 31 (, 9, 11); 32 (, 1 to 18); 33 (, 1 to 18); 34 (, 1 to 18); 35 (, 1 to 18); 36 (, 1 to 18); 37 (, 1 to 4, 5-6, 7 to 18); 38 (, 1 to 18); 39 (, 1 to 17); 40 (, 1 to 14, 16 to 18); 41 (, 1 to 18); 42 (, 1 to 16, 18); 43 (, 1 to 18); 44 (, 1 to 18); 45 (, 1 to 18); 46 (, 3, 4, 7 to 18); 47 (, 1 to 11); 1987; 1988; 1989; 1990; 1991; 1992; 1993; 1994; 1995; 1996; 1997; 1998; 1999; 2000; 2001; 2002; 2003; 2004; 2005; 2006; 2009; 2010; 2011; 2012; 2013; 2014; 2015; 2016; 2017; 2018; 2019; 2020; 2021; 2022; 2023; 2024; 2025
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Internet Archive
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Preserved
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2025-08-08
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13 to 34
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CLOCKSS Archive
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Preserved
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2026-02-09
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ahead-of-print, 9 to 48
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LOCKSS Archive
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Preserved
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2026-02-09
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9 to 46
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LOCKSS Archive
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In Progress
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2026-02-09
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47
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Portico
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Preserved
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2026-02-12
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Preserved : 1987: 9(1-5), 1988: 10(1-5), 1989: 11(1-5), 1990: 12(1-5), 1991: 13(1-5), 1992: 14(1-5), 1993: 15(1-6), 1994: 16(1-6), 1995: 17(1-6), 1996: 18(1-8), 1997: 19(1-10), 1998: 20(1-10), 1999: 21(1-12), 2000: 22(1-12), 2001: 23(1-12), 2002: 24(1-12), 2003: 25(1-12), 2004: 26(1-15), 2005: 27(1-15), 2006: 28(1-15), 2007: 29(1-15), 2007/2008: 30(1-15), 2009: 31(1-15), 2010: 32(1-18), 2011: 33(1-18), 2012: 34(1-18), 2013: 35(1-18), 2014: 36(1-18), 2015: 37(1-18), 2016: 38(1-18), 2017: 39(1-18), 2018: 40(1-18), 2019: 41(1-18), 2020: 42(1-18), 2021: 43(1-18), 2022: 44(1-18), 2023: 45(1-18), 2024: 46(1-18), 2025: 47(1-18), 2026: 48(1-3)
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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); 3 (1 to 9, 11 to 15); 4 (1 to 9, 11 to 18); 19 (1 to 9); 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 to 15); 27 (1 to 9, 11 to 15); 28 (1, 2-3, 4 to 9, 11 to 15); 29 (1 to 9, 11 to 15); 31 (1 to 9, 11 to 18); 32 (1 to 9, 11 to 18); 33 (1 to 9, 11 to 18); 34 (1 to 9, 11 to 18); 35 (1 to 9, 11 to 18); 36 (1 to 9, 11 to 18); 37 (1 to 4, 5-6, 7 to 9, 11 to 18); 38 (1 to 9, 11 to 18); 39 (1 to 9, 11 to 18); 41 (1 to 9, 11 to 18); 42 (1 to 9, 11 to 18); 43 (1 to 9, 11 to 18); 44 (1 to 9, 11 to 18); 45 (1 to 9, 11 to 18); 46 (1 to 9, 11 to 18); 47 (1 to 3, 5 to 7)
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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 : 1 (1-4); 2 (1-4); 3 (1-4); 4 (1-4); 5 (1-4); 6 (1-4); 7 (1-4); 8 (1-4); 9 (1-5); 10 (1-5); 11 (1-5); 12 (1-5); 13 (1-5); 14 (1-5); 15 (1-6); 16 (1-6); 17 (1-6); 18 (1-8); 19 (1-10); 20 (1-10); 21 (1-10, 12); 22 (1-12); 23 (1-4, 6-12); 24 (1-12); 25 (2-12); 26 (1-15); 27 (1-13, 15); 28 (1, 2-3, 4-15); 29 (1-15); 30 (1-15)
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Library of Congress
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Preserved
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2025-04-07
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39 (3 to 18); 40 (1 to 18); 41 (1 to 9, 11 to 18); 42 (1 to 18); 43 (1 to 18); 44 (1 to 18); 45 (1 to 18); 46 (1 to 18)
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