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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); 2 (1, 2); 3 (1, 2); 4 (1, 2); 5 (1, 2); 6 (1); 11 (2); 12 (1, 2); 13 (1 to 3); 14 (1 to 3); 15 (1 to 4); 16 (1 to 4); 17 (1 to 4); 18 (1 to 4); 19 (1 to 4); 20 (1 to 4); 21 (1 to 4); 22 (1 to 4); 23 (1 to 4); 24 (1 to 4); 25 (1 to 4); 26 (1 to 4); 27 (1 to 4); 28 (1 to 4); 29 (1 to 4); 30 (2, 3); 31; 32 (4); 33; 34 (1 to 4); 35 (3); 36 (1 to 4); 37 (1 to 4); 38 (1, 3, 4); 39 (1 to 4); 40 (1 to 6); 41 (1 to 3, 5, 6); 42 (1 to 6); 43 (1 to 6); 44 (1 to 6); 45 (1 to 6); 46 (1 to 5); 47 (1 to 6); 48 (1 to 6); 49 (1 to 4, 5-6); 50 (1 to 6); 51 (1 to 3)
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Internet Archive
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Preserved
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2025-08-08
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1 to 33
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LOCKSS Archive
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Preserved
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2026-04-13
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1 to 50
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CLOCKSS Archive
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Preserved
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2026-04-13
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1 to 51
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LOCKSS Archive
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In Progress
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2026-04-13
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51
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Portico
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Preserved
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2026-04-16
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Preserved : 1985/1986: 12(1-2), 1986/1987: 13(1-3), 1987/1988: 14(1-3), 1988/1989: 15(1-4), 1990: 16(1-4), 1991: 17(1-4), 1992: 18(1-4), 1993: 19(1-4), 1994: 20(1-4), 1995: 21(1-4), 1996: 22(1-4), 1997: 23(1-4), 1998: 24(1-4), 1999: 25(1-4), 2000: 26(1-4), 2001: 27(1-4), 2002: 28(1-4), 2003: 29(1-4), 2004: 30(1-4), 2005: 31(1-4), 2006: 32(1-4), 2007: 33(1-4), 2008: 34(1-4), 2009: 35(1-4), 2010: 36(1-4), 2011: 37(1-4), 2012: 38(1-4), 2013: 39(1-4), 2014: 40(1-6), 2015: 41(1-6), 2016: 42(1-6), 2017: 43(1-6), 2018: 44(1-6), 2019: 45(1-6), 2020: 46(1-6), 2020/2021: 47(1-6), 2022: 48(1-6), 2023: 49(1-6), 2024: 50(1-6), 2025: 51(1-4)
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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 : 3 (1 to 4); 4 (1 to 6); 5 (1 to 5); 23 (1 to 4); 24 (1 to 4); 25 (1 to 4); 26 (1 to 4); 27 (1 to 4); 28 (1 to 4); 29 (1 to 4); 31 (sup4, 1 to 4); 32 (1 to 4); 33 (1 to 4); 34 (1 to 4); 35 (1 to 4); 36 (1 to 4); 37 (1 to 4); 38 (1 to 4); 39 (1 to 4); 41 (1 to 6); 42 (1 to 6); 43 (1 to 6); 44 (1 to 6); 45 (1 to 6); 46 (1 to 6); 47 (1 to 6); 48 (1 to 6); 49 (1 to 4, 5-6)
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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, 2); 2 (1, 2); 3 (1, 2); 4 (1, 2); 5 (1, 2); 6 (1, 2); 7 (1, 2); 8 (1, 2); 9 (1, 2); 10 (1, 2); 11 (1, 2); 12 (1, 2); 13 (1-3); 14 (1-3); 15 (1-4); 16 (1-4); 17 (1-4); 18 (1-4); 19 (1-4); 20 (1-4); 21 (1-4); 22 (1-4); 23 (1-4); 24 (1-4); 25 (1-4); 26 (1-4); 27 (1-4); 28 (1-4); 29 (1-4); 30 (1-4); 31 (1-4); 32 (1-4); 33 (1-4); 34 (1-4)
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Library of Congress
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Preserved
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2025-04-07
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36 (1 to 4); 37 (1 to 4); 38 (1 to 4); 39 (1 to 4); 40 (1 to 6); 41 (1 to 6); 42 (1 to 6); 43 (1 to 6); 44 (1 to 5); 45 (1 to 6); 46 (1 to 6); 47 (1 to 6); 48 (1 to 6); 49 (1 to 5-6); 50 (1, 2)
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