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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 29 (4); 2004
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Internet Archive
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Preserved
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2025-08-08
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to 38
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Portico
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Preserved
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2026-02-12
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Preserved : 1982: 7(4), 1983: 8(1-2)
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Portico
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Preserved
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2026-02-12
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Preserved : 1984: 9(2, 4), 1985: 10(1)
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Portico
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Preserved
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2026-02-12
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Preserved : 1986: 11(3-4), 1987: 12(2, 4), 1988: 13(3)
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Portico
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Preserved
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2026-02-12
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Preserved : 1989: 14(4)
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Portico
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Preserved
|
2026-02-12
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Preserved : 1992: 17(4)
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Portico
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Preserved
|
2026-02-12
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Preserved : 1996: 21(2-4)
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Portico
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Preserved
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2026-02-12
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Preserved : 1999: 24(4)
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Portico
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Preserved
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2026-02-12
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Preserved : 2001: 26(4), 2002: 27(2, 4), 2003: 28(2, 4)
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Portico
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Preserved
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2026-02-12
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Preserved : 2004: 29(4)
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Portico
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Preserved
|
2026-02-12
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Preserved : 2006: 31(3)
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Portico
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Preserved
|
2026-02-12
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Preserved : 2008: 33(1, 4), 2009: 34(2-4), 2010: 35(1, S 1, 2-4), 2011: 36(1-4), 2012: 37(1-4), 2013: 38(1-4), 2014: 39(1-4), 2015: 40(1-2, 4), 2016: 41(1-4), 2017: 42(1-4), 2018: 43(1-4), 2019: 44(1-4), 2020: 45(1-4), 2021: 46(1-4), 2022: 47(1-4), 2023: 48(1-4), 2024: 49(1-4), 2025: 50(1-4)
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LOCKSS Archive
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In Progress
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2026-02-09
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1 to 45
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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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Library of Congress
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Preserved
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2025-04-07
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41 (4); 42 (1 to 4); 43 (1 to 4); 44 (1 to 3); 45 (1 to 4); 46 (1 to 3); 47 (1); 48 (2 to 4); 49 (1 to 4)
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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 : 49 (1 to 4)
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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 : 49 (1 to 4)
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