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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 4); 2 (, 1 to 4); 3 (, 1 to 4); 4 (, 1 to 4); 5 (, 1); 6 (, 1); 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 4); 17 (, 1 to 4); 18 (, 1 to 4); 19 (, 1 to 4); 20 (, 1 to 4); 21 (, 1 to 4); 22 (, 1 to 4); 23 (, 1 to 4); 24 (, 1 to 4); 25 (, 1 to 4); 26 (, 1 to 4); 27 (, 1 to 4); 28 (, 1 to 4); 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 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); 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 to 4); 57 (, 1 to 4); 58 (, 1 to 4); 59 (, 1 to 4); 60 (, 1 to 4); 61 (, 1 to 4); 62 (, 1 to 4); 63 (, 1 to 4); 64 (, 1 to 4); 65 (, 1 to 4); 66 (, 1 to 4); 67 (, 1 to 4); 68 (, 1 to 4); 69 (, 1 to 4); 70 (, 1 to 4); 71 (, 1 to 4); 72 (, 1 to 4); 73 (, 1 to 4); 74 (, 1 to 4); 75 (, 1 to 4); 76 (, 1 to 4); 77 (, 1 to 4); 78 (, 1 to 4); 79 (, 1 to 4); 80 (, 1 to 4); 81 (, 1 to 4); 82 (, 1 to 4); 83 (, 1 to 4); 84 (, 1 to 4); 85 (, 1 to 4); 86 (, 1 to 4); 87 (, 1 to 4); 88 (, 1 to 4); 89 (, 1 to 4); 90 (, 1 to 6); 91 (, 2, 4 to 6); 92 (, 1 to 6); 93 (, 1 to 6); 94 (, 1 to 4); 95 (, 1 to 4); 96 (, 1 to 4); 97 (, 1 to 3); 1978; 1979; 1980; 1981; 1982; 1983; 1984; 1985; 1986; 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; 2012; 2013; 2014; 2015; 2016; 2017; 2018; 2019; 2020; 2021; 2022; 2023; 2024; 2025
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Internet Archive
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Preserved
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2025-08-08
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4 to 21
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CLOCKSS Archive
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Preserved
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2026-02-09
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1 to 98
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Portico
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Preserved
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2026-02-12
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Preserved : 1979: 2(4)
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Portico
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Preserved
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2026-02-12
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Preserved : 1982: 5(1), 1983: 6(1), 1984: 7(6), 1985: 8(6)
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Portico
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Preserved
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2026-02-12
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Preserved : 1987: 10(1, 6)
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Portico
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Preserved
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2026-02-12
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Preserved : 1989: 12(6)
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Portico
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Preserved
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2026-02-12
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Preserved : 1991: 14(6)
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Portico
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Preserved
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2026-02-12
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Preserved : 1993: 16(4), 1994: 18(4), 1994: 20(4), 1995: 23(4)
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Portico
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Preserved
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2026-02-12
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Preserved : 1997: 27(1-4), 1997: 28(1-4), 1997: 29(1-4), 1998: 30(1-4), 1998: 31(1-4), 1998: 32(1-4), 1999: 33(1-4), 1999: 34(1-4), 1999: 35(1-4), 2000: 36(1-4), 2000: 37(1-4), 2000: 38(1-4), 2001: 39(1-4), 2001: 40(1-4), 2001: 41(1-4), 2002: 42(1-4), 2002: 43(1-4), 2002: 44(1-4), 2003: 45(1-4), 2003: 46(1-4), 2003: 47(1-4), 2004: 48(1-4), 2004: 49(1-4), 2004: 50(1-4), 2005: 51(1-4), 2005: 52(1-4), 2005: 53(1-4), 2006: 54(1-4), 2006: 55(1-4), 2006: 56(1-4), 2007: 57(1-4), 2007: 58(1-4), 2007: 59(1-4), 2008: 60(1-4), 2008: 61(1-4), 2008: 62(1-4), 2009: 63(1-4), 2009: 64(1-4), 2009: 65(1-4), 2010: 66(1-4), 2010: 67(1-4), 2010: 68(1-4), 2011: 69(1-4), 2011: 70(1-4), 2011: 71(1-4), 2012: 72(1-4), 2012: 73(1-4), 2012: 74(2-4), 2013: 75(1-4), 2013: 76(1-4), 2013: 77(1-4), 2014: 78(1-4), 2014: 79(1-4), 2014: 80(1-2, 4), 2015: 81(4), 2015: 82(1-4), 2015: 83(1-4), 2016: 84(1-4), 2016: 85(1-4), 2016: 86(1-4), 2017: 87(1-4), 2017: 88(1-4), 2017: 89(1-4), 2018: 90(1-6), 2019: 91(1-6), 2020: 92(1-6), 2021: 93(1-6), 2022: 94(1-4), 2023: 95(1-4), 2024: 96(1-4), 2025: 97(1-4), 2026: 98(1)
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LOCKSS Archive
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In Progress
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2026-02-09
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72 to 74
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LOCKSS Archive
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Preserved
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2026-02-09
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75 to 90
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Library of Congress
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Preserved
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2025-04-07
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90 (1 to 6); 91 (1 to 6); 92 (1 to 6); 93 (1 to 6); 94 (1 to 4); 95 (1 to 4); 96 (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 4); 4 (1 to 4); 5 (1 to 4); 6 (1 to 4); 7 (1 to 4); 8 (1 to 4); 9 (1 to 6); 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 to 4); 56 (1 to 4); 57 (1 to 4); 58 (1 to 4); 59 (1 to 4); 61 (1 to 4); 62 (1 to 4); 63 (1 to 4); 64 (1 to 4); 65 (1 to 4); 66 (1 to 4); 67 (1 to 4); 68 (1 to 4); 69 (1 to 4); 71 (1 to 4); 72 (1 to 4); 73 (1 to 4); 74 (1 to 4); 75 (1 to 4); 76 (1 to 4); 77 (1 to 4); 78 (1 to 4); 79 (1 to 4); 81 (1 to 4); 82 (1 to 4); 83 (1 to 4); 84 (1 to 4); 85 (1 to 4); 86 (1 to 4); 87 (1 to 4); 88 (1 to 4); 89 (1 to 4); 91 (1 to 6); 92 (1 to 6); 93 (1 to 6); 94 (1 to 4); 95 (1 to 4); 96 (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 4); 4 (1 to 4); 5 (1 to 4); 6 (1 to 4); 7 (1 to 4); 8 (1 to 4); 9 (1 to 6); 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 to 4); 56 (1 to 4); 57 (1 to 4); 58 (1 to 4); 59 (1 to 4); 61 (1 to 4); 62 (1 to 4); 63 (1 to 4); 64 (1 to 4); 65 (1 to 4); 66 (1 to 4); 67 (1 to 4); 68 (1 to 4); 69 (1 to 4); 71 (1 to 4); 72 (1 to 4); 73 (1 to 4); 74 (1 to 4); 75 (1 to 4); 76 (1 to 4); 77 (1 to 4); 78 (1 to 4); 79 (1 to 4); 81 (1 to 4); 82 (1 to 4); 83 (1 to 4); 84 (1 to 4); 85 (1 to 4); 86 (1 to 4); 87 (1 to 4); 88 (1 to 4); 89 (1 to 4); 91 (1 to 6); 92 (1 to 6); 93 (1 to 6); 94 (1 to 4); 95 (1 to 4); 96 (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 : 30; 34; 36; 45 (2-4); 46 (1-4); 47 (1-4); 48 (1-4); 49 (1-4); 50 (1-4); 51 (1-4); 52 (1-4); 53 (1-4); 54 (1-4); 55 (1-3); 56 (2-4); 57 (1-4); 58 (2-4); 59 (1-4); 60 (1-4); 61 (1-4); 62 (1-4); 63 (1-4); 64 (1-4); 65 (1-4); 66 (1-4); 67 (1-4); 68 (1-4); 69 (1-4); 70 (1-4); 71 (1-4); 72 (1-4); 73 (1-4); 74 (1-4); 75 (1-4); 76 (1-4); 77 (1-4); 78 (1-4); 79 (1-4); 80 (1-4); 81 (1-4); 82 (1-4); 83 (1-4); 84 (1-4); 85 (1-4); 86 (1-4); 87 (1-4); 88 (1-4); 89 (1-4); 90 (1-6); 91 (1-5)
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