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Scholars Portal
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Preserved
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2026-03-19
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Preserved : 1 (1); 2; 3; 4; 5; 6; 7; 8; 9; 10; 11; 12; 13; 14; 20; 21; 22; 23; 24; 25; 26; 27; 28; 29-30; 31; 32; 33; 34; 35; 36-37; 38; 39; 40; 41; 42; 43; 44 (2, 3); 45 (1 to 3); 46 (1 to 3); 47 (1, 3, 4); 48 (1 to 4); 49 (1 to 4); 50 (1 to 4); 51 (2 to 4); 52 (1 to 3); 53 (1 to 4); 54 (1 to 4); 55 (1 to 4); 56 (1 to 4); 57 (1 to 4); 58 (1 to 4); 59 (1 to 4); 60 (1 to 4); 61 (1)
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CLOCKSS Archive
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Preserved
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2026-04-13
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ahead-of-print to 29, 31 to 36, 38 to 60
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LOCKSS Archive
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Preserved
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2026-04-13
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1 to 36, 38 to 60
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LOCKSS Archive
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In Progress
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2026-04-13
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61
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Portico
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Preserved
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2026-04-16
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Preserved : 1985: 20(1), 1986: 21(1), 1987: 22(1), 1988: 23(1), 1989: 24(1), 1990: 25(1), 1991: 26(1), 1992: 27(1), 1993: 28(1), 1994: 29-30(1), 1996: 31(1), 1997: 32(1), 1998: 33(1), 1999: 34(1), 2000: 35(1), 2001: 36-37(1), 2003: 38(1), 2004: 39(1), 2005: 40(1), 2006: 41(1), 2007: 42(1), 2008: 43(1), 2009: 44(1-3), 2010: 45(1-3), 2011: 46(1-3), 2012: 47(1-4), 2013: 48(1-4), 2014: 49(1-4), 2015: 50(1-4), 2016: 51(1-4), 2017: 52(1-4), 2018: 53(1-4), 2019: 54(1-4), 2020: 55(1-4), 2021: 56(1-4), 2022: 57(1-4), 2023: 58(1-4), 2024: 59(1-4), 2025: 60(1-4), 2026: 61(1)
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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 : 38; 39; 40; 41; 42; 43
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Library of Congress
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Preserved
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2025-04-07
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45 (1 to 3); 46 (1 to 3); 47 (1 to 4); 48 (1 to 4); 49 (1 to 4); 50 (1 to 4); 51 (1 to 4); 52 (1 to 4); 53 (1 to 4); 54 (1 to 4); 55 (1 to 4); 56 (1 to 4); 57 (1 to 4); 58 (1 to 4); 59 (1 to 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 : 4 (1); 5 (2 to 4); 32 (1); 33; 34; 35; 36-37; 38; 39; 41; 42; 43; 44 (2, 3); 45 (1 to 3); 46 (1 to 3); 47 (1 to 4); 48 (1 to 4); 49 (1 to 4); 51 (1 to 4); 52 (1 to 4); 53 (1 to 4); 54 (1 to 4); 55 (1 to 4); 56 (1 to 4); 57 (1 to 4); 58 (1, 2, 4); 59 (1 to 4)
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