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Scholars Portal
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Preserved
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2026-03-19
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Preserved : 1 (2 to 4); 2 (1 to 4); 3 (1 to 6); 4 (1 to 6); 5 (1 to 6); 6 (1 to 6); 7 (1 to 6); 8 (1 to 6); 9 (1 to 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 6); 17 (1 to 6); 18 (1 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 6); 38 (1 to 6); 39 (1 to 6); 40 (1 to 6); 41 (1 to 6); 42 (1 to 8); 43 (1 to 8); 44 (1 to 8); 45 (1 to 8); 46 (1 to 8); 47 (1 to 8); 48 (1 to 8); 49 (1 to 8); 50 (1 to 8); 51 (1 to 8); 52 (1 to 8); 53 (1 to 10); 54 (1 to 10); 55 (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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2026-04-09
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Preserved : 1971: 1(1-4), 1972/1973: 2(1-4), 1974: 3(1-6), 1975: 4(1-6), 1976: 5(1-6), 1977: 6(1-6), 1978: 7(1-6), 1979: 8(1-6), 1980: 9(1-6), 1981: 10(1-6), 1982: 11(1-6), 1983: 12(1-6), 1984: 13(1-6), 1985: 14(1-6), 1986: 15(1-6), 1987: 16(1-6), 1988: 17(1-6), 1989: 18(1-6), 1990: 19(1-6), 1991: 20(1-6), 1992: 21(1-6), 1993: 22(1-6), 1994: 23(1-6), 1995: 24(1-6), 1996: 25(1-6)
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LOCKSS Archive
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Preserved
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2026-04-06
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1 to 47
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CLOCKSS Archive
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Preserved
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2026-04-06
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1 to 55
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Portico
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Preserved
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2026-04-09
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Preserved : 2000: 29(5), 2001: 30(5)
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Portico
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Preserved
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2026-04-09
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Preserved : 2004: 33(2-3, 6), 2005: 34(1, 4, 6), 2006: 35(1-2, 4, 6), 2007: 36(2-3, 5-6), 2008: 37(1-6), 2009: 38(1-6), 2010: 39(1-6), 2011: 40(1-6), 2012: 41(1-3, 5-6), 2013: 42(1-5, 7-8), 2014: 43(1-8), 2014/2015: 44(1-8), 2016: 45(1-8), 2017: 46(1-8), 2018: 47(1-8), 2019: 48(1-4, 6-8), 2019/2020: 49(1-8), 2021: 50(1-8), 2022: 51(1-8), 2023: 52(1-8), 2024: 53(1-9), 2025: 54(1, 4-10), 2026: 55(1-2)
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LOCKSS Archive
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In Progress
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2026-04-06
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48
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Library of Congress
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Preserved
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2025-04-07
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45 (4); 46 (5, 8); 47 (3 to 8); 48 (1 to 8); 49 (1 to 8); 50 (1 to 8); 51 (1 to 8); 52 (1 to 8); 53 (1 to 9)
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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 6); 4 (1 to 6); 5 (1 to 8); 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 6); 38 (1 to 6); 39 (1 to 6); 41 (1 to 6); 42 (1 to 8); 43 (1 to 8); 44 (1 to 8); 45 (1 to 8); 46 (1 to 8); 47 (1 to 8); 48 (1 to 8); 49 (1 to 8); 51 (1 to 8); 52 (1 to 8); 53 (1 to 9)
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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 6); 4 (1 to 6); 5 (1 to 8); 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 6); 38 (1 to 6); 39 (1 to 6); 41 (1 to 6); 42 (1 to 8); 43 (1 to 8); 44 (1 to 8); 45 (1 to 8); 46 (1 to 8); 47 (1 to 8); 48 (1 to 8); 49 (1 to 8); 51 (1 to 8); 52 (1 to 8); 53 (1 to 9)
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National Digital Preservation Program, China
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Preserved
|
2025-10-23
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Preserved : 43 (2 to 8)
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National Digital Preservation Program, China
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Preserved
|
2025-12-04
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Preserved : 43 (2 to 8)
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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 : 26 (1-6); 27 (1-6); 28 (1-6); 29 (1-6); 30 (1-6); 31 (1-6); 32 (1-6); 33 (1-6); 34 (1-6); 35 (1-3, 5, 6); 36 (1, 3-6); 37 (1-6); 38 (1-6); 39 (1-6); 40 (1-6); 41 (1-6); 42 (1-8); 43 (1-8); 44 (1-8); 45 (1-8); 46 (1-8); 47 (1-8); 48 (1-8); 312 (3)
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