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Portico
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Preserved
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2026-02-12
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Preserved : 1987: 1(2-3), 1988: 2(1, 3-6), 1989: 3(1-6), 1990: 4(1-12), 1991: 5(1-12), 1992: 6(1-12), 1993: 7(1-12), 1994: 8(1-5, 7-11), 1995: 9(1-12), 1996: 10(1-12), 1997: 11(1-6), 1997: 12(1-6), 1998: 13(1-6), 1998: 14(1-6), 1999: 15(1-6, ), 1999: 16(1-6), 2000: 17(1-6), 2000: 18(1-6), 2001: 19(1-6), 2001: 20(1-6), 2002: 21(1-6), 2002: 22(1-6), 2003: 23(1-6), 2003: 24(1-4, 6), 2004: 25(1-6), 2004: 26(1-3), 2005: 28(2, 6), 2006: 29(1-6), 2006: 30(1-6), 2007: 31(1-6), 2007: 32(1-6), 2008: 33(1-6), 2008: 34(1-6), 2009: 35(2-4), 2009: 36(1-2), 2010: 37(1-5), 2010: 38(1, 3-5), 2011: 39(2, 6), 2011: 40(3-6)
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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 1 (1 to 3); 2 (, 1 to 6); 3 (, 1 to 6); 4 (, 1 to 12); 5 (, 1 to 12); 6 (, 1 to 12); 7 (, 1 to 12); 8 (, 1 to 12); 9 (, 1 to 12); 10 (, 1 to 12); 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); 1987; 1988; 1989; 1990; 1991; 1992; 1993; 1994; 1995; 1996; 1997; 1998; 1999; 2000; 2001; 2002; 2003; 2004; 2005; 2006; 2007; 2008; 2009; 2010; 2011
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CLOCKSS Archive
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Preserved
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2026-02-09
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21 to 24, 28, 34 to 40
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Portico
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Preserved
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2026-02-12
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Preserved : 1987: 1(1), 1988: 2(1), 1989: 3(1), 1990: 4(1), 1991: 5(1, 12), 1992: 6(1, 11), 1993: 7(1), 1994: 8(1), 1995: 9(1), 1996: 10(1), 1997: 11(1-6), 1997: 12(1-6), 1998: 13(1-6), 1998: 14(1-6), 1999: 15(1-6), 1999: 16(1-6), 2000: 17(1-6), 2000: 18(1-6), 2001: 19(1-6), 2001: 20(1-6), 2002: 21(1-6), 2002: 22(1-6), 2003: 23(1-6), 2003: 24(1-6), 2004: 25(1-6), 2004: 26(1-6), 2005: 27(1-6), 2005: 28(1-6), 2006: 29(1-6), 2006: 30(1-6), 2007: 31(1-6), 2007: 32(1-6), 2008: 33(1-6), 2008: 34(1-6), 2009: 35(1-6), 2009: 36(1-6), 2010: 37(1-6), 2010: 38(1-6), 2011: 39(1-6), 2011: 40(1-6), 2011/2012: 41(1-6), 2012: 42(1-6), 2012/2013: 43(1-6), 2012/2013: 44(1-6), 2014: 45(1-6), 2014: 46(1-6), 2014/2015: 47(1-6), 2014/2015: 48(1-6), 2015/2016: 49(1-6), 2016: 50(1-6), 2017: 51(1-6), 2017: 52(1-6), 2018: 53(1-6), 2018: 54(1-6), 2019: 55(1-6), 2019: 56(1-6), 2020: 57(1-6), 2020: 58(1-6), 2021: 59(1-6), 2021: 60(1-6), 2022: 61(1-6), 2022: 62(1-6), 2023: 63(1-6), 2023: 64(1-6), 2024: 65(1-6), 2024: 66(1-6), 2025: 67(1-12), 2026: 68(1-2)
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LOCKSS Archive
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Preserved
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2026-02-09
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33, 35 to 49, 51, 53, 55, 57, 59, 61, 63, 65
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CLOCKSS Archive
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In Progress
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2026-02-09
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33, 49, 53, 55, 57, 61, 63, 65, 67
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CLOCKSS Archive
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Preserved
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2026-02-09
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35 to 48, 51, 59
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LOCKSS Archive
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In Progress
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2026-02-09
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67
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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 (6); 4 (1 to 6); 5 (1 to 6); 6 (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 (Supplement_1, 1 to 6); 39 (1 to 6); 41 (1 to 6); 42 (1 to 6); 43 (1 to 6); 44 (1 to 6); 45 (1 to 6); 46 (1 to 6); 47 (1 to 6); 48 (1 to 6); 49 (suppl_1, 1 to 6); 51 (suppl_1, 1 to 6); 52 (1 to 6); 53 (suppl_1, 1 to 6); 54 (1 to 6); 55 (Supplement_1, 1 to 6); 56 (1 to 6); 57 (1 to 6); 58 (Supplement_1, 1 to 6); 59 (1 to 6); 61 (1 to 5); 62 (1 to 4, 6); 63 (1, 2, 4 to 6); 64 (1 to 6); 65 (1 to 6); 66 (1 to 6); 67 (Supplement_1, 1 to 8)
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National Digital Preservation Program, China
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Preserved
|
2025-12-04
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Preserved : ; 3 (6); 4 (1 to 6); 5 (1 to 6); 6 (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 (Supplement_1, 1 to 6); 39 (1 to 6); 41 (1 to 6); 42 (1 to 6); 43 (1 to 6); 44 (1 to 6); 45 (1 to 6); 46 (1 to 6); 47 (1 to 6); 48 (1 to 6); 49 (suppl_1, 1 to 6); 51 (suppl_1, 1 to 6); 52 (1 to 6); 53 (suppl_1, 1 to 6); 54 (1 to 6); 55 (Supplement_1, 1 to 6); 56 (1 to 6); 57 (1 to 6); 58 (Supplement_1, 1 to 6); 59 (1 to 6); 61 (1 to 5); 62 (1 to 4, 6); 63 (1, 2, 4 to 6); 64 (1 to 6); 65 (1 to 6); 66 (1 to 6); 67 (Supplement_1, 1 to 9)
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British Library
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Preserved
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2019-09-18
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Preserved : 45 (1 to 6), 46 (1; 5 to 6), 47 (1 to 6), 48 (2; 4 to 6), 49 (1 to 2; 5 to 6; S1), 50 (1 to 4), 51 (4 to 5), 52 (5 to 6), 53 (2; 5 to 6; S2), 54 (1 to 4), 55 (1 to 2; 4)
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