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Scholars Portal
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Preserved
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2026-03-19
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Preserved : 66 (1); 67; 68; 69; 70; 71; 72; 73; 74; 75; 76; 77; 78; 79; 80; 81; 82; 83; 84; 85; 86 (none); 87 (1)
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Portico
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Preserved
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2026-04-16
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Preserved : 1975: 47(1), 1976: 48(1), 1978: 49(1), 1979: 50(1), 1980: 51(1), 1981: 52(1), 1982: 53(1), 1983: 54(1), 1984: 55(1), 1985: 56(1), 1986: 57(1), 1987: 58(1), 1988: 59(1), 1989: 60(1), 1990: 61(1), 1991: 62(1), 1992: 63(1), 1993: 64(1), 1994: 65(1), 1995: 66(1), 1996: 67(1), 1997: 68(1), 1998: 69(1), 1999: 70(1), 2000: 71(1), 2001: 72(1), 2002: 73(1), 2003: 74(1), 2004: 75(1), 2005: 76(1), 2006: 77(1), 2007: 78(1), 2008: 79(1), 2009: 80(1), 2011: 81(1), 2011: 82(1), 2012: 83(1), 2013: 84(1), 2014: 85(1)
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Portico
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Preserved
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2026-04-16
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Preserved : 2016: 86, 2017: 87(1)
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CLOCKSS Archive
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In Progress
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2026-04-13
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78
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CLOCKSS Archive
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Preserved
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2026-04-13
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79 to 86
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LOCKSS Archive
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Preserved
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2026-04-13
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78 to 84, 86
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British Library
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Preserved
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2019-09-18
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Preserved : 84 (1)
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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 : 86; 87 (1)
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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 : 86; 87 (1)
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