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Scholars Portal
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Preserved
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2026-03-19
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Preserved : 14 (3); 29 (1 to 4); 30 (1 to 4); 31 (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); 40 (1, 2, 3-4); 41 (1 to 4); 42 (1 to 4); 43 (1 to 4); 44 (1 to 4); 45 (1 to 4); 46 (1 to 4); 47 (1 to 4); 48 (2 to 4); 49 (1 to 4); 50 (1 to 4); 51 (1 to 4); 52 (1 to 4); 53 (1 to 4); 54 (1 to 4); 55 (1 to 4); 56 (1)
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Internet Archive
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Preserved
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2025-08-08
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1 to 41
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Portico
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Preserved
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2026-05-28
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Preserved : 1971: 1(1-4), 1972: 2(1-4), 1973: 3(1-4), 1974: 4(1-4), 1975: 5(1-4), 1976: 6(1-4), 1977: 7(1-4), 1978: 8(1-4), 1979: 9(1-4), 1980: 10(1-4), 1981: 11(1-4), 1982: 12(1-4), 1983: 13(1-4), 1984: 14(1-4), 1985: 15(1-4), 1986: 16(1-4), 1987: 17(1-4), 1988: 18(1-4), 1989: 19(1-4), 1990: 20(1-4), 1991: 21(1-4), 1992: 22(1-4), 1993: 23(1-4), 1994: 24(1-4), 1995: 25(1-4), 1996: 26(1-4), 1997: 27(1-4), 1998: 28(1-4), 1999: 29(1-4), 2000: 30(1-4), 2001: 31(1-4), 2002: 32(1-4), 2003: 33(1-4), 2004: 34(1-4), 2005: 35(1-4), 2006: 36(1-4), 2007: 37(1-4), 2008: 38(1-4), 2009: 39(1-4), 2010: 40(1-4), 2011: 41(1-4), 2012: 42(1-4), 2013: 43(1-4), 2014: 44(1-4), 2015: 45(1-4), 2016: 46(1-4), 2017: 47(1-4)
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LOCKSS Archive
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In Progress
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2026-06-01
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30 to 33
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LOCKSS Archive
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Preserved
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2026-06-01
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34 to 47
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Portico
|
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Preserved
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2026-05-28
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Preserved : 1984: 14(3)
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|
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Portico
|
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Preserved
|
2026-05-28
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Preserved : 2018: 48(1-4), 2019: 49(1-4), 2020: 50(1-4), 2021: 51(1-4), 2022: 52(1-4), 2023: 53(1-4), 2024: 54(1-4), 2025: 55(1-4), 2026: 56(1-2)
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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, 2, 3-4); 5 (1 to 4); 27 (1 to 4); 28 (1 to 4); 29 (1 to 4); 31 (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 4); 42 (1 to 4); 43 (1 to 4); 44 (1 to 4); 45 (1 to 4); 46 (1 to 4); 47 (1 to 4); 48 (1 to 4); 49 (1 to 4); 51 (1 to 4); 52 (1 to 4); 53 (1 to 4); 54 (1 to 4); 55 (1, 2)
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Library of Congress
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Preserved
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2025-04-07
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40 (1 to 3-4); 41 (1 to 4); 42 (1 to 4); 43 (1 to 4); 44 (1 to 4); 45 (1 to 4); 46 (1 to 4); 47 (1 to 4); 48 (1 to 4); 49 (1 to 4); 50 (1 to 4); 51 (1 to 4); 52 (1 to 4); 53 (1 to 4); 54 (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 : 5 (3); 8 (1-4); 9 (2, 4); 10 (1-3); 11 (1, 3); 13 (4); 15 (2); 17 (3, 4); 21 (2); 22 (4); 24 (3, 4); 25 (1-4); 26 (1-4); 27 (1-3); 29 (4); 31 (2); 34 (3); 37 (1-4); 38 (2); 43 (1-4); 44 (1-4); 45 (1-4); 46 (1-4); 47 (1-4)
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