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Scholars Portal
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Preserved
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2026-03-19
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Preserved : 18 (2 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 6); 27 (1 to 6); 28 (1 to 6); 29 (1 to 6); 30 (1 to 6); 31 (1 to 6); 32 (1 to 6); 33 (1 to 6); 34 (1 to 6); 35 (1 to 6); 36 (1 to 6); 37 (1 to 3, 4-6); 38 (1-2, 3-4, 5-6); 39 (1 to 6); 40 (1 to 6); 41 (1 to 6); 42 (1, 2, 3-4, 5-6); 43 (2-4, 5-6); 44 (1-2, 3-6)
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Portico
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Preserved
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2026-04-16
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Preserved : 1983: 2(1-4), 1984: 3(1-6), 1985: 4(1-6), 1986: 5(1-6), 1987: 6(1-6), 1988: 7(1-6), 1989: 8(1-6), 1990: 9(1-6), 1991: 10(1-6), 1992: 11(1-6), 1993: 12(1-6), 1994: 13(1-6), 1995: 14(1-6), 1996: 15(1-6), 1997: 16(1-6), 1998: 17(1-6), 1999: 18(1-6), 2000: 19(1-6), 2001: 20(1-6), 2002: 21(1-6), 2003: 22(1-6), 2004: 23(1-6), 2005: 24(1-6), 2006: 25(1-6), 2007: 26(1-6), 2008: 27(1-6), 2009: 28(1-6), 2010: 29(1-6), 2011: 30(1-6), 2012: 31(1-6), 2013: 32(1-6), 2014: 33(1-6), 2015: 34(1-6), 2016: 35(1-6), 2017: 36(1-6), 2018: 37(1-6), 2019: 38(1-6), 2020: 39(1-6), 2021: 40(1-6), 2022: 41(1-6), 2023: 42(1-6), 2024: 43(1-6), 2025: 44(1-6)
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CLOCKSS Archive
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In Progress
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2026-04-13
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20 to 23, 37 to 44
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LOCKSS Archive
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In Progress
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2026-04-13
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20, 21, 44
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LOCKSS Archive
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Preserved
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2026-04-13
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22 to 43
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CLOCKSS Archive
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Preserved
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2026-04-13
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24 to 36
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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)
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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 to 6); 3 (1 to 6); 4 (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 6); 27 (1 to 6); 28 (1 to 6); 29 (1 to 6); 31 (1 to 6); 32 (1 to 6); 33 (1 to 6); 34 (1 to 6); 35 (1 to 6); 36 (1 to 6); 37 (1 to 3, 4-6); 38 (1-2, 3-4, 5-6); 39 (1 to 6)
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Library of Congress
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Preserved
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2025-04-07
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29 (1 to 6); 30 (1 to 6); 31 (1 to 6); 32 (1 to 6); 33 (1 to 6); 34 (1 to 6); 35 (1 to 6); 36 (1 to 6); 37 (1 to 4-6); 38 (1-2, 3-4, 5-6); 39 (1 to 6); 40 (1 to 6); 41 (1 to 6); 42 (1 to 3-4, 5-6); 43 (1, 2-4)
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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 : 20 (2-6); 21 (1-6); 22 (1-6); 23 (1-6); 24 (1-6); 25 (1-6); 26 (1-3, 5, 6); 27 (2-6); 28 (1-4, 6); 29 (1, 2, 4-6); 30 (1-6); 31 (1, 2, 4-6); 32 (1-6); 33 (1-6); 34 (1-4, 6); 35 (1-6); 36 (1, 3, 6); 37 (1, 3, 4-6); 38 (1-2, 3-4, 5-6)
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