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