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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; 15; 16; 17; 18; 19; 20; 21; 22; 23; 24; 25 (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)
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Internet Archive
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Preserved
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2025-08-08
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LOCKSS Archive
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Preserved
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2026-04-06
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24 to 26
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CLOCKSS Archive
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Preserved
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2026-04-06
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24 to 29
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Portico
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Preserved
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2026-04-09
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Preserved : 1986: 1(1), 1987: 2(1), 1988: 3(1), 1989: 4(1), 1990: 5(1), 1991: 6(1), 1992: 7(1), 1993: 8(1), 1995: 9(1), 1996: 10(1), 1997: 11(1), 1998: 12(1), 1999: 13(1), 2000: 14(1), 2001: 15(1), 2002: 16(1), 2003: 17(1), 2004: 18(1), 2005: 19(1), 2006: 20(1), 2007: 21(1), 2008: 22(1), 2009: 23(1), 2010: 24(1), 2011: 25(1-2), 2012: 26(1-2), 2013: 27(1-2), 2014: 28(1-2), 2015: 29(1-2)
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CLOCKSS Archive
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Preserved
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2026-04-06
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1 to 38
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LOCKSS Archive
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Preserved
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2026-04-06
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1 to 38
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LOCKSS Archive
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In Progress
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2026-04-06
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39
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Portico
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Preserved
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2026-04-09
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Preserved : 2016: 30(1-2), 2017: 31(1-2), 2018: 32(1-2), 2019: 33(1-2), 2020: 34(1-2), 2021: 35(1-2), 2022: 36(1-2), 2023: 37(1-2), 2024: 38(1-2), 2025: 39(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 : 31 (1, 2); 32 (1)
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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 : 31 (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 : 2 (1); 3 (2); 11 (1); 12; 13; 14; 15; 16; 17; 18; 19; 21; 22; 23; 24; 25 (2); 26 (1, 2); 27 (1, 2); 28 (1, 2); 29 (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)
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Library of Congress
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Preserved
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2025-04-07
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30 (2); 31 (1, 2); 32 (1, 2); 33 (1, 2); 34 (1, 2); 35 (1, 2); 36 (1, 2); 37 (1, 2); 38 (1)
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