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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 4); 2 (1-2, 3, 4); 3 (1 to 4); 4 (1 to 4); 5 (1 to 4); 6 (1 to 4); 7 (1 to 6); 8 (1 to 6); 9 (1, 2, 3-4, 5, 6); 10 (1 to 6); 11 (1 to 6); 12 (1 to 6); 13 (1 to 6); 14 (1 to 6); 15 (1 to 6); 16 (1 to 8); 17 (1 to 8); 18 (1 to 8); 19 (1 to 8); 20 (1 to 8); 21 (1-2, 3 to 8); 22 (1 to 8); 23 (1 to 3, 4-5, 6 to 8); 24 (1 to 8); 25 (1 to 8); 26 (1 to 8); 27 (1 to 10); 28 (1 to 10); 29 (1 to 10); 30 (1 to 10); 31 (1 to 10); 32 (1 to 4, 5-6, 7, 8-9, 10); 33 (1 to 7, 8-9, 10); 34 (1 to 10); 35 (1 to 10); 36 (1 to 10); 37 (1 to 10); 38 (1 to 10); 39 (1 to 10); 40 (1 to 10); 41 (1 to 10); 42 (1 to 10); 43 (1 to 10); 44 (1 to 10); 45 (1 to 10); 46 (8 to 10); 47 (1 to 12); 48 (1 to 12); 49 (1 to 12); 50 (1 to 4); 51 (1 to 4); 52 (1 to 4); 53 (1, 2)
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Internet Archive
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Preserved
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2025-08-08
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1 to 31
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CLOCKSS Archive
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Preserved
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2026-05-04
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1 to 53
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Portico
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Preserved
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2026-05-07
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Preserved : 1977: 1(1-4), 1977/1978: 2(1-4), 1978: 3(1-4), 1979: 4(1-4), 1979/1980: 5(1-4), 1980: 6(1-4), 1981: 7(1-6), 1982: 8(1-6), 1983: 9(1-6), 1983/1984: 10(1-6), 1984/1985: 11(1-6), 1985: 12(1-6), 1986: 13(1-6), 1987: 14(1-6), 1987/1988: 15(1-6), 1988/1989: 16(1-8), 1990/1991: 17(1-8), 1991/1992: 18(1-8), 1992/1993: 19(1-8), 1993/1994: 20(1-8), 1994: 21(1-8), 1995: 22(1-8), 1996: 23(1-8), 1997: 24(1-8), 1997/1998: 25(1-8), 1998/1999: 26(1-8), 1999/2000: 27(1-10), 2001: 28(1-10), 2002: 29(1-10), 2003: 30(1-10), 2004/2005: 31(1-10), 2005/2006: 32(1-10), 2006: 33(1-10), 2007: 34(1-10), 2008: 35(1-10), 2009: 36(1-10), 2010: 37(1-10), 2011: 38(1-10), 2012: 39(1-7, 10), 2013: 40(1-9), 2014: 41(1-10), 2015: 42(3-10), 2016: 43(1-10), 2017: 44(1-10), 2018: 45(1-10), 2019: 46(1-10), 2020: 47(1-12), 2021: 48(1-12), 2022: 49(1-12), 2023: 50(1-4), 2024: 51(1-4), 2025: 52(1-4), 2026: 53(1-2)
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LOCKSS Archive
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In Progress
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2026-05-04
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39, 46
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LOCKSS Archive
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Preserved
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2026-05-04
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40 to 45
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Library of Congress
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Preserved
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2025-04-07
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45 (1 to 10); 46 (1 to 10); 47 (1 to 12); 48 (1 to 12); 49 (1 to 12); 50 (1 to 4); 51 (1 to 4)
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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 9); 4 (1 to 9); 5 (1 to 4); 24 (1 to 8); 25 (1 to 8); 26 (1 to 8); 27 (1 to 9); 28 (1 to 9); 29 (1 to 9); 31 (1 to 9); 32 (1 to 5, 7, 8); 33 (1 to 8); 34 (1 to 9); 35 (1 to 9); 36 (1 to 9); 37 (1 to 9); 38 (1 to 9); 39 (1 to 9); 41 (1 to 9); 42 (1 to 9); 43 (1 to 9); 44 (1 to 9); 45 (1 to 9); 46 (1 to 9); 47 (1 to 9, 11, 12); 48 (1 to 9, 11, 12); 49 (1 to 9, 11, 12); 51 (1 to 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 9); 4 (1 to 9); 5 (1 to 4); 24 (1 to 8); 25 (1 to 8); 26 (1 to 8); 27 (1 to 9); 28 (1 to 9); 29 (1 to 9); 31 (1 to 9); 32 (1 to 5, 7, 8); 33 (1 to 8); 34 (1 to 9); 35 (1 to 9); 36 (1 to 9); 37 (1 to 9); 38 (1 to 9); 39 (1 to 9); 41 (1 to 9); 42 (1 to 9); 43 (1 to 9); 44 (1 to 9); 45 (1 to 9); 46 (1 to 9); 47 (1 to 9, 11, 12); 48 (1 to 9, 11, 12); 49 (1 to 9, 11, 12); 51 (1 to 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 : 23 (5); 24 (1-8); 25 (1-8); 26 (1-8); 27 (1-10); 28 (1-10); 29 (1-10); 30 (1-10); 31 (1-10); 32 (1-4, 5-6, 7, 8-9, 10); 33 (1-4, 8-9, 10); 34 (1-3, 5-10); 35 (1-10); 36 (1-10); 37 (1-10); 38 (1-10); 39 (1-10); 40 (1-10); 41 (1-10); 42 (1-10); 43 (1-10); 44 (1-10); 45 (1-10); 46 (1-9)
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