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Internet Archive
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Preserved
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2025-08-08
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1 to 53
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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 6); 2 (, 1 to 6); 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 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 (, 1 to 6); 50 (, 1 to 6); 51 (, 1 to 6); 52 (, 1 to 6); 53 (, 1 to 6); 54 (, 1 to 6); 55 (, 1 to 6); 56 (, 1 to 6); 57 (, 1 to 6); 58 (, 1 to 6); 59 (, 1 to 6); 60 (, 1 to 6); 61 (, 1 to 6); 62 (, 1 to 6); 63 (, 1 to 6); 64 (, 1 to 6); 65 (, 1 to 6); 66 (, 1 to 6); 67 (, 1 to 6); 68 (, 1 to 4, 5-6); 69 (, 1-2, 3-4, 5/6); 70 (, 1-2, 3-4, 5-6); 71 (, 1-2, 3-4, 5-6); 72 (, 1-2, 3-4, 5-6); 73 (, 1-2, 3-4, 5-6); 74 (, 1-2, 3-4, 5-6); 75 (, 1-2, 3-4, 5-6); 76 (, 1-2, 3-4, 5-6); 77 (, 1-2, 3-4, 5-6); 78 (, 1-2, 3-4, 5-6); 79 (, 1-2, 3-4, 5-6); 80 (, 1-2, 3-4, 5-6); 81 (, 1-2, 2, 3-4, 5-6); 82 (, 1-2, 3-4, 5-6); 83 (, 1-2, 3-4, 5-6); 84 (, 1-2, 3-4, 5-6); 85 (, 1-2, 3-4, 5-6); 86 (, 1-2, 3-4, 5-6); 87 (, 1-2, 3-4, 5-6); 88 (, 1-2, 3-4, 5-6); 89 (, 1-2, 3-4, 5-6); 90 (, 1-2, 3-4, 5-6); 91 (, 1-2, 3-4, 5-6); 92 (, 1-2, 3-4, 5-6); 93 (, 1-2, 3-4, 5-6); 94 (, 1-2, 3-4, 5-6); 95 (, 1-2, 3-4, 5-6); 96 (, 1-2, 3-4, 5-6); 97 (, 1-2, 3-4, 5-6); 98 (, 1-2, 3-4, 5-6); 99 (, 1-2, 3-4, 5-6); 100 (, 1-2, 3-4, 5-6); 101 (, 1-2, 3-4, 5-6); 102 (, 1-2, 3-4, 5-6); 103 (, 1-2, 3-4, 5-6); 104 (, 1-2, 3-4, 5-6); 105 (, 1-2, 3-4, 5-6); 106 (, 1-2, 3-4, 5-6); 107 (, 1-2, 3-4, 5-6); 108 (, 1-2, 3-4, 5-6); 109 (, 1-2, 3-4, 5-6); 110 (, 1-2, 3-4, 5-6); 111 (, 1-2, 3-4, 5-6); 112 (, 1-2, 3, 5-6); 113 (, 1-2, 3-4, 5-6); 114 (, 1-2, 3-4); 115 (, 1-2, 3-4, 5-6); 116 (, 1-2, 3, 5); 117 (, 1, 3); 1967; 1968; 1969; 1970; 1971; 1972; 1973; 1974; 1975; 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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CLOCKSS Archive
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Preserved
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2026-02-09
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1 to 118
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Portico
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Preserved
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2026-02-12
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Preserved : 1968: 3(6), 1968: 4(6)
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Portico
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Preserved
|
2026-02-12
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Preserved : 1976: 19(6)
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Portico
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Preserved
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2026-02-12
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Preserved : 1980: 28(4)
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Portico
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Preserved
|
2026-02-12
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Preserved : 1986: 40(3)
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Portico
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Preserved
|
2026-02-12
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Preserved : 1987: 42(4), 1988: 43(3)
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Portico
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Preserved
|
2026-02-12
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Preserved : 1992: 52(6), 1993: 54(5), 1994: 55(4)
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Portico
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Preserved
|
2026-02-12
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Preserved : 1996: 60(5), 1997: 61(1-6), 1997: 62(1-6), 1998: 63(2-6), 1998: 64(1-2, 4-6), 1999: 65(1-6), 1999: 66(1-6), 2000: 67(1-6), 2000: 68(1-6), 2001: 69(1-6), 2001: 70(1-6), 2002: 71(1-6), 2002: 72(1-6), 2003: 73(1-6), 2003: 74(1-6), 2004: 75(1-6), 2004: 76(1-6), 2005: 77(1-6), 2005: 78(1-6), 2006: 79(1-6), 2006: 80(1-6), 2007: 81(1-6), 2007: 82(1-6), 2008: 83(1-6), 2008: 84(1-6), 2009: 85(1-6), 2009: 86(1-6), 2010: 87(1-6), 2010: 88(1-6), 2011: 89(1-6), 2011: 90(1-6), 2012: 91(1-6), 2012: 92(1-2, 5-6), 2013: 93(1-6), 2013: 94(1-6), 2014: 95(1-6), 2014: 96(1-4), 2015: 97(1-6), 2015: 98(1-6), 2016: 99(1-6), 2016: 100(1-6), 2017: 101(1-6), 2017: 102(1-6), 2018: 103(1-6), 2018: 104(1-6), 2019: 105(1-6), 2019: 106(1-6), 2020: 107(1-6), 2020: 108(1-6), 2021: 109(1-6), 2021: 110(1-6), 2022: 111(1-6), 2022: 112(1-4), 2023: 113(1-6), 2023: 114(1-6), 2024: 115(1-6), 2024: 116(1-3, 5), 2025: 117(1, 3, 5-6), 2025: 118(1-4)
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LOCKSS Archive
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In Progress
|
2026-02-09
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91, 92, 105
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LOCKSS Archive
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Preserved
|
2026-02-09
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93 to 103
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Library of Congress
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Preserved
|
2025-04-07
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103 (1-2, 3-4, 5-6); 104 (1-2, 3-4, 5-6); 105 (1-2, 3-4, 5-6); 106 (1-2, 3-4, 5-6); 107 (1-2, 3-4, 5-6); 108 (1-2, 3-4, 5-6); 109 (1-2, 3-4, 5-6); 110 (1-2, 3-4, 5-6); 111 (1-2, 3-4, 5-6); 112 (1-2, 3-4, 5-6); 113 (1-2, 3-4, 5-6); 114 (1-2, 3-4, 5-6); 115 (1-2, 3-4, 5-6); 116 (1-2)
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National Digital Preservation Program, China
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Preserved
|
2025-10-23
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Preserved : 1 (1-2, 3-4, 5-6); 7 (1-2, 3-4, 5-6); 8 (1-2, 3-4, 5-6); 9 (1-2, 3-4, 5-6); 11 (1-2, 3-4, 5-6); 12 (1-2, 3-4, 5-6); 13 (1-2, 3-4, 5-6); 14 (1-2, 3-4, 5-6); 15 (1-2, 3-4, 5-6); 16 (1-2, 3-4, 5-6); 17 (1-2, 3-4, 5-6); 18 (1-2, 3-4, 5-6); 19 (1-2, 3-4, 5-6); 61 (1 to 6); 62 (1 to 6); 63 (1 to 6); 64 (1 to 6); 65 (1 to 6); 66 (1 to 6); 67 (1 to 6); 68 (1 to 4, 5-6); 69 (1-2, 3-4, 5-6); 71 (1-2, 3-4, 5-6); 72 (1-2, 3-4, 5-6); 73 (1-2, 3-4, 5-6); 74 (1-2, 3-4, 5-6); 75 (1-2, 3-4, 5-6); 76 (1-2, 3-4, 5-6); 77 (1-2, 3-4, 5-6); 78 (1-2, 3-4, 5-6); 79 (1-2, 3-4, 5-6); 81 (1-2, 3-4, 5-6); 82 (1-2, 3-4, 5-6); 83 (1-2, 3-4, 5-6); 84 (1-2, 3-4, 5-6); 85 (1-2, 3-4, 5-6); 86 (1-2, 3-4, 5-6); 87 (1-2, 3-4, 5-6); 88 (1-2, 3-4, 5-6); 89 (1-2, 3-4, 5-6); 91 (1-2, 3-4, 5-6); 92 (1-2, 3-4, 5-6); 93 (1-2, 3-4, 5-6); 94 (1-2, 3-4, 5-6); 95 (1-2, 3-4, 5-6); 96 (1-2, 3-4, 5-6); 97 (1-2, 3-4, 5-6); 98 (1-2, 3-4, 5-6); 99 (1-2, 3-4, 5-6); 111 (1-2, 3-4, 5-6); 112 (1-2, 3-4, 5-6); 113 (1-2, 3-4, 5-6); 114 (1-2, 3-4); 115 (1, 3, 5); 116 (1, 3, 5)
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National Digital Preservation Program, China
|
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Preserved
|
2025-12-04
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Preserved : 1 (1-2, 3-4, 5-6); 7 (1-2, 3-4, 5-6); 8 (1-2, 3-4, 5-6); 9 (1-2, 3-4, 5-6); 11 (1-2, 3-4, 5-6); 12 (1-2, 3-4, 5-6); 13 (1-2, 3-4, 5-6); 14 (1-2, 3-4, 5-6); 15 (1-2, 3-4, 5-6); 16 (1-2, 3-4, 5-6); 17 (1-2, 3-4, 5-6); 18 (1-2, 3-4, 5-6); 19 (1-2, 3-4, 5-6); 61 (1 to 6); 62 (1 to 6); 63 (1 to 6); 64 (1 to 6); 65 (1 to 6); 66 (1 to 6); 67 (1 to 6); 68 (1 to 4, 5-6); 69 (1-2, 3-4, 5-6); 71 (1-2, 3-4, 5-6); 72 (1-2, 3-4, 5-6); 73 (1-2, 3-4, 5-6); 74 (1-2, 3-4, 5-6); 75 (1-2, 3-4, 5-6); 76 (1-2, 3-4, 5-6); 77 (1-2, 3-4, 5-6); 78 (1-2, 3-4, 5-6); 79 (1-2, 3-4, 5-6); 81 (1-2, 3-4, 5-6); 82 (1-2, 3-4, 5-6); 83 (1-2, 3-4, 5-6); 84 (1-2, 3-4, 5-6); 85 (1-2, 3-4, 5-6); 86 (1-2, 3-4, 5-6); 87 (1-2, 3-4, 5-6); 88 (1-2, 3-4, 5-6); 89 (1-2, 3-4, 5-6); 91 (1-2, 3-4, 5-6); 92 (1-2, 3-4, 5-6); 93 (1-2, 3-4, 5-6); 94 (1-2, 3-4, 5-6); 95 (1-2, 3-4, 5-6); 96 (1-2, 3-4, 5-6); 97 (1-2, 3-4, 5-6); 98 (1-2, 3-4, 5-6); 99 (1-2, 3-4, 5-6); 111 (1-2, 3-4, 5-6); 112 (1-2, 3-4, 5-6); 113 (1-2, 3-4, 5-6); 114 (1-2, 3-4); 115 (1, 3, 5); 116 (1, 3, 5)
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National Digital Preservation Program, China
|
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Preserved
|
2025-10-23
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Preserved : 7 (1, 3, 5); 8 (1, 3, 5); 9 (1, 3); 61 (1 to 6); 62 (1 to 6); 63 (2 to 6); 64 (1, 2, 4 to 6); 65 (1 to 6); 66 (1 to 6); 67 (1 to 6); 68 (1 to 5); 69 (1, 3, 5); 71 (1, 3, 5); 72 (1, 3, 5); 73 (1, 3, 5); 74 (1, 3, 5); 75 (1, 3, 5); 76 (1, 3, 5); 77 (1, 3, 5); 78 (1, 3, 5); 79 (1, 3, 5); 81 (1, 3, 5); 82 (1, 3, 5); 83 (1, 3, 5); 84 (1, 3, 5); 85 (1, 3, 5); 86 (1, 3, 5); 87 (1, 3, 5); 88 (1, 3, 5); 89 (1, 3, 5)
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National Digital Preservation Program, China
|
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Preserved
|
2025-12-04
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Preserved : 7 (1, 3, 5); 8 (1, 3, 5); 9 (1, 3); 61 (1 to 6); 62 (1 to 6); 63 (2 to 6); 64 (1, 2, 4 to 6); 65 (1 to 6); 66 (1 to 6); 67 (1 to 6); 68 (1 to 5); 69 (1, 3, 5); 71 (1, 3, 5); 72 (1, 3, 5); 73 (1, 3, 5); 74 (1, 3, 5); 75 (1, 3, 5); 76 (1, 3, 5); 77 (1, 3, 5); 78 (1, 3, 5); 79 (1, 3, 5); 81 (1, 3, 5); 82 (1, 3, 5); 83 (1, 3, 5); 84 (1, 3, 5); 85 (1, 3, 5); 86 (1, 3, 5); 87 (1, 3, 5); 88 (1, 3, 5); 89 (1, 3, 5)
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National Library of the Netherlands
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Preserved
|
2024-12-15
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Preserved : 63 (2); 64 (1); 65 (6); 67 (2); 68 (1, 5); 69 (1, 3, 5); 70 (1, 3, 5); 71 (1, 3, 5); 72 (1, 3, 5); 73 (1, 3, 5); 74 (1, 3, 5); 75 (1, 3, 5); 76 (1, 3, 5); 77 (1, 3, 5-6); 78 (1-2, 3-4, 5-6); 79 (1-2, 3, 5); 80 (1-2, 3-4, 5-6); 81 (1-2, 3-4, 5-6); 82 (1-2, 3-4, 5-6); 83 (1-2, 3-4, 5-6); 84 (1-2, 3-4, 5-6); 85 (1-2, 3-4, 5-6); 86 (1-2, 3-4, 5-6); 87 (1-2, 3-4, 5-6); 88 (1-2, 3-4, 5-6); 89 (1-2, 3-4, 5-6); 90 (1-2, 3-4, 5-6); 91 (1-2, 3-4, 5-6); 92 (1-2, 3-4, 5-6); 93 (1-2, 3-4, 5-6); 94 (1-2, 3-4, 5-6); 95 (1-2, 3-4, 5-6); 96 (1-2, 3-4, 5-6); 97 (1-2, 3-4, 5-6); 98 (1-2, 3-4, 5-6); 99 (1-2, 3-4, 5-6); 100 (1-2, 3-4, 5-6); 101 (1-2, 3-4, 5-6); 102 (1-2, 3-4, 5-6); 103 (1-2, 3-4, 5-6); 104 (1-2, 3-4, 5-6); 105 (1-2, 3-4, 5-6); 106 (1-2, 3-4)
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