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Internet Archive
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Preserved
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2025-08-08
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1 to 35
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LOCKSS Archive
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Preserved
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2026-03-30
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1 to 52
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CLOCKSS Archive
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Preserved
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2026-03-30
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1 to 54
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LOCKSS Archive
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In Progress
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2026-03-30
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53, 54
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Portico
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Preserved
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2026-04-02
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Preserved : 1975: 3(7)
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Portico
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Preserved
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2026-04-02
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Preserved : 1977: 5(1-14), 1978: 6(1-18), 1979: 7(1-18), 1980: 8(1-18), 1981: 9(1-18), 1982: 10(1-12), 1983: 11(1-12), 1984: 12(3-16, 19-22), 1985: 13(1-12), 1986: 14(1-10), 1987: 15(1-12), 1988/1998: 16(1-12), 1989: 17(1-12), 1990: 18(1-12), 1991: 19(1-12), 1992: 20(1-12), 1993: 21(1-12), 1994: 22(1-12), 1995: 23(1-12), 1996: 24(1-12), 1997: 25(1-12), 1998: 26(1-12), 1999: 27(1-12), 2000: 28(1-12), 2001: 29(1-12), 2002: 30(1-12), 2003: 31(1-12), 2004: 32(1-12), 2005: 33(1-12), 2006: 34(1-12), 2007: 35(1-12), 2008: 36(1-12), 2009: 37(1-12), 2010: 38(1-12), 2011: 39(1-12), 2012: 40(1-12), 2013: 41(1-12), 2014: 42(1-12), 2015: 43(1-12), 2016: 44(1-12), 2017: 45(1-12), 2018: 46(1-12), 2019: 47(1-12), 2020: 48(1-12), 2021: 49(1-12), 2022: 50(1-12), 2023: 51(1-12), 2024: 52(1-12), 2025: 53(1-12), 2026: 54(1-6)
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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 9, 11, 12); 4 (1 to 9, 11, 12); 5 (1 to 9, 11, 12); 25 (1 to 9, 11, 12); 26 (1 to 9, 11, 12); 27 (1 to 9, 11, 12); 28 (1 to 9, 11, 12); 29 (1 to 9, 11, 12); 31 (1 to 9, 11, 12); 32 (1 to 9, 11, 12); 33 (1 to 9, 11, 12); 34 (1 to 9, 11, 12); 35 (1 to 9, 11, 12); 36 (1 to 9, 11, 12); 37 (1 to 9, 11, 12); 38 (1 to 9, 11, 12); 39 (1 to 9, 11, 12); 41 (1 to 9, 11, 12); 42 (1 to 9, 11, 12); 43 (1 to 9, 11, 12); 44 (1 to 9, 11, 12); 45 (1 to 9, 11, 12); 46 (1 to 9, 11, 12); 47 (1 to 9, 11, 12); 48 (1 to 9, 11, 12); 49 (1 to 9, 11, 12); 51 (1 to 9, 11, 12); 52 (1 to 9, 11, 12); 53 (1 to 5, 7)
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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, 4-6); 2 (1-6); 3 (1-12); 4 (1-11); 5 (1-4, 6-14); 6 (1-18); 7 (1-18); 8 (1-20); 9 (1-20); 10 (1-12, 14-20); 11 (1-22); 12 (1-2, 3-16, 17-18, 19-24); 13 (1-12); 14 (1-10); 15 (1-2, 3-12); 16 (1, 4-12); 17 (1-12); 18 (1-12); 19 (1-12); 20 (1-12); 21 (1-12); 22 (1-4, 6-15); 23 (1-14); 24 (1-14); 25 (1-12); 26 (1-12); 27 (1-12); 28 (1-12); 29 (1, 5, 7, 9, 11); 30 (3); 31 (12); 32 (5); 33 (3, 4, 8, 10); 34 (2-12); 35 (1-12); 36 (1-12)
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Library of Congress
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Preserved
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2025-04-07
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38 (2 to 12); 39 (1 to 12); 40 (1 to 12); 41 (1 to 12); 42 (1 to 12); 43 (1 to 12); 44 (1 to 12); 45 (1 to 12); 46 (1 to 12); 47 (1 to 12); 48 (1 to 12); 49 (1 to 12); 50 (1 to 12); 51 (1 to 12); 52 (1 to 12)
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