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