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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, 2); 2 (, 1 to 3); 3 (, 1 to 4); 4 (, 1 to 4); 5 (, 1 to 4); 6 (, 1, 2, 3-4); 7 (, 1 to 4); 8 (, 1, 2, 3-4); 9 (, 1, 2, 3-4); 10 (, 1-2, 3, 4); 11 (, 1 to 4); 12 (, 1 to 4); 13 (, 1 to 4); 14 (, 1, 2-3, 4); 15 (, 1 to 3); 16 (, 1-3, 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 (, 1-2, 3, 4); 24 (, 1 to 4); 25 (, 1-3, 4); 26 (, 1 to 4); 27 (, 1 to 4); 28 (, 1-4); 29 (, 1 to 4); 30 (, 1-2, 3, 4); 31 (, 1 to 4); 32 (, 1-4); 33 (, 1-2, 3, 4); 34 (, 1 to 4); 35 (, 1 to 4); 36 (, 1 to 4); 37 (, 1 to 4); 38 (, 1-3, 4); 39 (, 1 to 4); 40 (, 1 to 4); 41 (, 1-4); 42 (, 1 to 4); 43 (, 1 to 4); 44 (, 1-3, 4); 45 (, 1 to 4); 46 (, 1 to 4); 47 (, 1 to 4); 48 (, 1-4); 49 (, 1 to 4); 50 (, 1 to 4); 51 (, 1 to 4); 52 (, 1-3, 4); 53 (, 1 to 4); 54 (, 1 to 4); 55 (, 1-2, 3, 4); 56 (, 1-2, 3, 4); 57 (, 1 to 4); 58 (, 1 to 4); 59 (, 1 to 4); 60 (, 1-3, 4); 61 (, 1 to 4); 62 (, 1-3, 4); 63 (, 1 to 4); 64 (, 1-3, 4); 65 (, 1 to 4); 66 (, 1 to 4); 67 (, 1 to 4); 68 (, 1 to 4); 69 (, 1-4); 70 (, 1 to 4); 71 (, 1 to 4); 72 (, 1 to 4); 73 (, 1 to 4); 74 (, 1, 2, 3-4); 75 (, 1 to 4); 76 (, 1, 2-4); 77 (, 1, 2, 3-4); 78 (, 1 to 4); 79 (, 1-2, 3-4); 80 (, 1, 2-3, 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, 2, 3-4); 90 (, 1 to 4); 91 (, 1 to 4); 92 (, 1 to 4); 93 (, 1 to 4); 94 (, 1 to 4); 95 (, 1 to 4); 96 (, 1, 2-3, 4 to 9, 10-11, 12); 97 (, 1 to 12); 98 (, 1 to 12); 99 (, 1, 2-3, 4, 5, 6-7, 8-9, 10 to 12); 100 (, 1 to 12); 101 (, 1 to 12); 102 (, 1 to 12); 103 (, 1 to 12); 104 (, 1 to 12); 105 (, 1 to 12); 106 (, 1 to 12); 107 (, 1 to 12); 108 (, 1 to 7); 1976; 1977; 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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1 to 98
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CLOCKSS Archive
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Preserved
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2026-02-09
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1 to 109
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Portico
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Preserved
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2026-02-12
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Preserved : 1978: 3(1)
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Portico
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Preserved
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2026-02-12
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Preserved : 1980: 5(1-2)
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Portico
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Preserved
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2026-02-12
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Preserved : 1981: 6(3-4)
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Portico
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Preserved
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2026-02-12
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Preserved : 1983: 9(2), 1984: 10(4), 1985: 12(2), 1985: 13(2), 1986: 15(1-4), 1986: 17(4), 1987: 18(4), 1987: 19(3), 1988: 21(1, 4), 1988: 22(1-2), 1988: 23(3-4), 1989: 24(3-4), 1989: 25(1-3), 1990: 27(1, 3)
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Portico
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Preserved
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2026-02-12
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Preserved : 1991: 31(2), 1992: 33(3-4), 1993: 36(2), 1993: 37(1), 1994: 40(1, 4), 1995: 42(3)
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Portico
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Preserved
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2026-02-12
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Preserved : 1997: 49(1)
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Portico
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Preserved
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2026-02-12
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Preserved : 2000: 57(3-4)
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Portico
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Preserved
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2026-02-12
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Preserved : 2003: 68(4), 2004: 69(1)
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Portico
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Preserved
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2026-02-12
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Preserved : 2005: 73(4), 2005: 74(1-2), 2006: 75(2-3), 2007: 78(2), 2007: 79(1-2), 2007: 80(1-4), 2008: 81(1-4), 2008: 82(1-4), 2008: 83(1-4), 2009: 84(1-4), 2009: 85(1-4), 2009: 86(1-4), 2010: 87(1-4), 2010: 88(1-4), 2010: 89(1-4), 2011: 90(1-4), 2011: 91(1-4), 2011: 92(1-4), 2012: 93(1-2, 4), 2012: 94(1-3), 2012: 95(3-4), 2013: 96(1-11), 2014: 97(1-11), 2015: 98(1-2, 4-12), 2016: 99(1-12), 2017: 100(1-12), 2018: 101(1-12), 2019: 102(1-12), 2019/2020: 103(1-12), 2021: 104(1-12), 2022: 105(1-12), 2023: 106(2-12), 2024: 107(1-10, 12), 2025: 108(1-12), 2026: 109(1)
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LOCKSS Archive
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In Progress
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2026-02-09
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93 to 95, 102
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LOCKSS Archive
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Preserved
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2026-02-09
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96 to 101
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Library of Congress
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Preserved
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2025-04-07
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100 (6, 10); 101 (1 to 12); 102 (1 to 12); 103 (1 to 12); 104 (1 to 12); 105 (1 to 12); 106 (1 to 12); 107 (1 to 10)
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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 : 1 (1 to 9, 11, 12); 5 (1 to 4); 6 (1, 4); 7 (1 to 4); 8 (1, 2, 4); 9 (1 to 4); 11 (1 to 9, 11, 12); 12 (1 to 9, 11, 12); 13 (1 to 9, 11, 12); 14 (1 to 9, 11, 12); 15 (1 to 9, 11, 12); 16 (1 to 9, 11, 12); 17 (1 to 9, 11, 12); 48 (1); 49 (2 to 4); 51 (1 to 4); 52 (1, 4); 53 (1 to 4); 54 (1 to 4); 55 (1, 3, 4); 56 (1, 3, 4); 57 (1 to 4); 58 (1 to 4); 59 (1 to 4); 61 (1 to 4); 62 (1, 4); 63 (1 to 4); 64 (1, 4); 65 (1 to 4); 66 (1 to 4); 67 (1 to 4); 68 (1 to 4); 69 (1); 71 (2 to 4); 72 (1 to 4); 73 (1 to 4); 74 (1 to 3); 75 (1 to 4); 76 (1, 2); 77 (1 to 3); 78 (1 to 4); 79 (1, 3); 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 3); 91 (1 to 4); 92 (1 to 4); 93 (1 to 4); 94 (1 to 4); 95 (1 to 4); 96 (1, 2, 4 to 9, 12); 97 (1 to 9, 11, 12); 98 (1 to 9, 11, 12); 99 (1, 2, 4 to 6, 8, 11, 12)
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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 : 1 (1 to 9, 11, 12); 5 (1 to 4); 6 (1, 4); 7 (1 to 4); 8 (1, 2, 4); 9 (1 to 4); 11 (1 to 9, 11, 12); 12 (1 to 9, 11, 12); 13 (1 to 9, 11, 12); 14 (1 to 9, 11, 12); 15 (1 to 9, 11, 12); 16 (1 to 9, 11, 12); 17 (1 to 9, 11, 12); 48 (1); 49 (2 to 4); 51 (1 to 4); 52 (1, 4); 53 (1 to 4); 54 (1 to 4); 55 (1, 3, 4); 56 (1, 3, 4); 57 (1 to 4); 58 (1 to 4); 59 (1 to 4); 61 (1 to 4); 62 (1, 4); 63 (1 to 4); 64 (1, 4); 65 (1 to 4); 66 (1 to 4); 67 (1 to 4); 68 (1 to 4); 69 (1); 71 (2 to 4); 72 (1 to 4); 73 (1 to 4); 74 (1 to 3); 75 (1 to 4); 76 (1, 2); 77 (1 to 3); 78 (1 to 4); 79 (1, 3); 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 3); 91 (1 to 4); 92 (1 to 4); 93 (1 to 4); 94 (1 to 4); 95 (1 to 4); 96 (1, 2, 4 to 9, 12); 97 (1 to 9, 11, 12); 98 (1 to 9, 11, 12); 99 (1, 2, 4 to 6, 8, 11, 12)
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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 : 48 (1); 49 (2-4); 50 (1-4); 51 (1-4); 52 (1, 4); 53 (1-4); 54 (1-4); 55 (1, 3, 4); 56 (1, 3, 4); 57 (1-4); 58 (1-4); 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); 70 (2-4); 71 (1-4); 72 (2-4); 73 (1-4); 74 (1, 2, 3-4); 75 (1-4); 76 (1); 77 (3-4); 78 (1-3); 79; 80 (1, 2-3, 4); 81 (1-4); 82 (1-4); 83 (1-4); 84 (1-4); 85 (1-4); 86 (1, 2, 4); 87 (1-4); 88 (1-4); 89 (1, 2, 3-4); 90 (1-4); 91 (1-4); 92 (1-4); 93 (1-4); 94 (1-4); 95 (1-4); 96 (1, 2-3, 4-9, 10-11, 12); 97 (1-12); 98 (1-12); 99 (1, 2-3, 4, 5, 8-9, 10-12); 100 (1-12); 101 (1-12); 102 (1-11)
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