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Scholars Portal
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Preserved
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2026-03-19
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Preserved : 17 (1 to 6); 18 (1 to 6); 19 (1 to 6); 20 (1 to 6); 21 (1 to 6); 22 (1 to 6); 23 (1 to 6); 24 (1 to 6); 25 (1 to 6); 26 (1 to 7); 27 (1 to 7); 28 (1 to 7); 29 (1 to 7); 30 (1 to 7); 31 (Supplement, 1 to 6); 32 (Supplement, 1, 2 to 4 to 6); 33 (1 to 6); 34 (Supplement, 1 to 6); 35 (Supplement, 1 to 6); 36 (Supplement, 1 to 6); 37 (Supplement, 1 to 6); 38 (Supplement, 1 to 6); 39 (Supplement, 1 to 6); 40 (1 to 6); 41 (1 to 6); 42 (1 to 6); 43 (1 to 6); 44 (1 to 6); 45 (1 to 6); 46 (1, 2)
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LOCKSS Archive
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Preserved
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2026-04-06
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1 to 37, 39 to 45
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CLOCKSS Archive
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Preserved
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2026-04-06
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29 to 40
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LOCKSS Archive
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In Progress
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2026-04-06
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38, 46, 47
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CLOCKSS Archive
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In Progress
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2026-04-06
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41 to 47
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Portico
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Preserved
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2026-04-02
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Preserved : 1980: 1(1-4), 1981: 2(1-4), 1982: 3(1-4), 1983: 4(1-4), 1984: 5(1-4), 1985: 6(1-4), 1986: 7(1-4), 1987: 8(1-4), 1988: 9(1-4), 1989: 10(1-4), 1990: 11(1-4), 1991: 12(1-4), 1992: 13(1-4), 1993: 14(1-6), 1994: 15(1-6), 1995: 16(1-6), 1996: 17(1-6), 1997: 18(1-6), 1998: 19(1-6), 1999: 20(1-6), 2000: 21(1-6), 2001: 22(1-6), 2002: 23(1-6), 2003: 24(1-6), 2004: 25(1-6), 2005: 26(1-7), 2006: 27(1-7), 2007: 28(1-7), 2008: 29(1-7), 2009: 30(1-7), 2010: 31(1-3, 3, S, 4-6, S), 2011: 32(1-3, 3, S, 4-6, S), 2012: 33(1-3, 3, S, 4-6, S), 2013: 34(1-4, 4, S, 5-6, S), 2014: 35(1-4, 4, S, 5-6, S), 2015: 36(1-2, 2, S, 3-6, S), 2016: 37(1-2, 2, S, 3-6, S), 2017: 38(1-3, 3, S, 4-6, S), 2018: 39(1-2, 2, S, 3-6, S), 2019: 40(1-6), 2020: 41(1-6), 2021: 42(1-6), 2022: 43(1-6), 2023: 44(1-6), 2024: 45(1-6), 2025: 46(1-6), 2026: 47(1-2)
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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 : 4 (1 to 6); 38 (Supplement, 1, 2 to 4 to 6); 39 (Supplement, 1 to 6); 41 (1 to 6); 42 (1 to 4, 6); 43 (1 to 5)
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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 to 6); 38 (Supplement, 1, 2 to 4 to 6); 39 (Supplement, 1 to 6); 41 (1 to 6); 42 (1 to 4, 6); 43 (1 to 5)
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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 6); 39 (1, 2); 2017
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British Library
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Preserved
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2019-09-18
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Preserved : 37 (6), 38 (2 to 3; 6), 39 (4 to 6), 40 (1; 3)
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