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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 12 (1 to 4); 13 (, 1 to 4); 14 (, 1 to 4); 15 (, 1 to 4); 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 3); 56 (, 1 to 3); 57 (, 1, 2); 58 (, 1 to 3); 59 (, 1 to 3); 60 (, 1 to 3); 61 (, 1 to 3); 62 (, 1 to 3); 63 (, 1 to 3); 64 (, 1 to 3); 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, 2-3, 4); 83 (, 1-2, 3-4); 84 (, 1, 2-3, 4); 85 (, 1 to 4); 86 (, 1 to 4); 87 (, 1 to 4); 88 (, 1-2, 3, 4); 89 (, 1, 2-3, 4); 90 (, 1, 2-3, 4); 91 (, 1 to 4); 92 (, 1 to 4); 93 (, 1 to 4); 94 (, 1 to 4); 95 (, 1 to 4); 96 (, 1 to 4); 97 (, 1 to 4); 98 (, 1 to 4); 99 (, 1 to 4); 100 (, 1 to 4); 101 (, 1 to 4); 102 (, 1 to 4); 103 (, 1 to 4); 104 (, 1 to 6); 105 (, 1 to 6); 106 (, 1 to 4); 107 (, 1 to 4); 108 (, 1-2, 3, 4); 109 (, 1 to 4); 110 (, 1, 2-3, 4); 111 (, 1 to 4); 112 (, 1, 2-3, 4); 113 (, 1 to 4); 114 (, 1 to 4); 115 (, 1 to 4); 116 (, 1-2, 3, 4); 117 (, 1 to 4); 118 (, 1 to 4); 119 (, 1, 2-3, 4); 120 (, 1, 2, 3-4); 121 (, 1 to 4); 122 (, 1/2, 3, 4); 123 (, 1 to 4); 124 (, 1, 2, 3/4); 125 (, 1, 2/3, 4); 126 (, 1/2, 3, 4); 127 (, 1-2, 3, 4); 128 (, 1, 2-3, 4); 129 (, 1, 2-3, 4); 130 (, 1, 2, 3-4); 131 (, 1, 2-3, 4); 132 (, 1 to 4); 133 (, 1-2, 3, 4); 134 (, 1, 2-3, 4); 135 (, 1, 2-3, 4); 136 (, 1-2, 3, 4); 137 (, 1-2, 3, 4); 138 (, 1 to 4); 139 (, 1 to 6); 140 (, 1 to 6); 141 (, 1 to 6); 142 (, 1 to 6); 143 (, 1 to 6); 144 (, 1 to 6); 145 (, 1 to 6); 146 (, 1 to 6); 147 (, 1 to 6); 148 (, 1 to 6); 149 (, 1 to 6); 150 (, 1 to 6); 151 (, 1 to 6); 152 (, 1 to 6); 153 (, 1 to 6); 154 (, 1 to 6); 155 (, 1 to 6); 156 (, 1 to 6); 157 (, 1 to 6); 158 (, 1 to 6); 159 (, 1 to 6); 160 (, 1 to 6); 161 (, 1 to 6); 162 (, 1 to 6); 163 (, 1 to 6); 164 (, 1 to 6); 165 (, 1 to 6); 166 (, 1 to 6); 167 (, 1 to 6); 168 (, 1 to 6); 169 (, 1 to 6); 170 (, 1 to 4, 5-6); 171 (, 1 to 7, 8-9, 10 to 12); 172 (, 1, 2-3, 4 to 10, 11-12); 173 (, 1 to 12); 174 (, 3, 7 to 12); 175 (, 1 to 12); 176 (, 1 to 12); 177 (, 1 to 12); 178 (, 1 to 12); 179 (, 1 to 12); 180 (, 1 to 7); 1966; 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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Internet Archive
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Preserved
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2025-08-08
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1 to 150
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LOCKSS Archive
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Preserved
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2026-02-09
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1 to 125, 127 to 161, 163 to 173
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Portico
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Preserved
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2026-02-12
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Preserved : 1963: 9(2)
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Portico
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Preserved
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2026-02-12
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Preserved : 1967: 16(1), 1967: 17(1), 1968: 18(4), 1968: 19(4), 1969: 20(3), 1969: 21(4), 1969: 24(1)
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Portico
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Preserved
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2026-02-12
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Preserved : 1972: 34(4), 1972: 37(1), 1973: 38(1), 1973: 40(1)
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Portico
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Preserved
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2026-02-12
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Preserved : 1974: 44(2), 1974: 48(2), 1975: 51(1)
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Portico
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Preserved
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2026-02-12
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Preserved : 1976: 57(3), 1977: 61(1)
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Portico
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Preserved
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2026-02-12
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Preserved : 1978: 66(4), 1978: 67(4), 1979: 68(4), 1979: 69(1)
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Portico
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Preserved
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2026-02-12
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Preserved : 1980: 74(3-4)
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Portico
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Preserved
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2026-02-12
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Preserved : 1982: 79(1), 1982: 80(3), 1983: 82(1), 1984: 85(1)
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Portico
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Preserved
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2026-02-12
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Preserved : 1985: 90(4)
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Portico
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Preserved
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2026-02-12
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Preserved : 1986: 94(1-2), 1987: 95(2), 1987: 97(4)
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Portico
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Preserved
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2026-02-12
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Preserved : 1989: 102(2)
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Portico
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Preserved
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2026-02-12
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Preserved : 1990: 104(4), 1991: 107(1, 3), 1991: 108(3)
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Portico
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Preserved
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2026-02-12
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Preserved : 1992: 112(1), 1993: 114(2-3), 1994: 115(3), 1994/1995: 118(1, 4), 1995: 120(1-2), 1995: 121(1-3)
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Portico
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Preserved
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2026-02-12
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Preserved : 1997: 126(3-4), 1997: 127(1-4), 1997: 128(1-4), 1997: 129(1-4), 1997/1998: 130(1-4), 1998: 131(1-4), 1998: 132(1-4), 1998: 133(1-4), 1999: 134(1-4), 1999: 135(1-4), 1999: 136(1-4), 1999: 137(1-4), 2000: 138(1-4), 2000: 139(1-6), 2000/2001: 140(1-6), 2001: 141(1-6), 2001/2002: 142(1-6), 2002: 143(1-6), 2002/2003: 144(1-6), 2003: 145(1-6), 2003/2004: 146(1-6), 2004: 147(1-6), 2004/2005: 148(1-6), 2005: 149(1-6), 2005: 150(1-6), 2006: 151(1-6), 2006: 152(1-6), 2006/2007: 153(1-6), 2007: 154(1-6), 2008: 155(1-6), 2008: 156(1-6), 2009: 157(1-6), 2009: 158(1-6), 2010: 159(1-6), 2010: 160(1-6), 2011: 161(1-6), 2011: 162(1-6), 2012: 163(1-6), 2012: 164(1-3), 2013: 165(1-6), 2013: 166(1-4), 2014: 167(1-6), 2014: 168(1-6), 2015: 169(1-6), 2015: 170(1-6), 2016: 171(1-12), 2017: 172(1-12), 2018: 173(1-12), 2019: 174(1-12), 2020: 175(1-12), 2021: 176(1-12), 2022: 177(1-12), 2023: 178(1-12), 2024: 179(1-12), 2024/2025: 180(1-2, 4-12), 2026: 181(1-2)
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LOCKSS Archive
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In Progress
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2026-02-09
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162, 174
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CLOCKSS Archive
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Preserved
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2026-02-09
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1 to 181
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Library of Congress
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Preserved
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2025-04-07
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172 (10, 11-12); 173 (1 to 12); 174 (1 to 12); 175 (1 to 12); 176 (1 to 12); 177 (1 to 12); 178 (1 to 12); 179 (1 to 11)
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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 : 13 (1 to 3); 14 (1 to 6); 15 (1 to 6); 16 (1 to 6); 17 (1 to 5); 126 (3, 4); 127 (1, 3, 4); 128 (1, 2, 4); 129 (1, 2, 4); 131 (1, 2, 4); 132 (1 to 4); 133 (1, 3, 4); 134 (1, 2, 4); 135 (1, 2, 4); 136 (1, 3, 4); 137 (1, 3, 4); 138 (1 to 4); 139 (1 to 6); 141 (1 to 6); 142 (1 to 6); 143 (1 to 6); 144 (1 to 6); 145 (1 to 6); 146 (1 to 6); 147 (1 to 6); 148 (1 to 6); 149 (1 to 6); 151 (1 to 6); 152 (1 to 6); 153 (1 to 6); 154 (1 to 6); 155 (1 to 6); 156 (1 to 6); 157 (1 to 6); 158 (1 to 6); 159 (1 to 6); 161 (1 to 6); 162 (1 to 6); 163 (1 to 6); 164 (1 to 6); 165 (1 to 6); 166 (1 to 6); 167 (1 to 6); 168 (1 to 6); 169 (1 to 6); 171 (1 to 8, 11, 12); 172 (1, 2, 4 to 9, 11); 173 (1 to 9, 11, 12); 174 (1 to 9, 11, 12); 175 (1 to 9, 11, 12); 176 (1 to 9, 11, 12); 177 (1 to 9, 11, 12); 178 (1 to 9, 11, 12); 179 (1 to 9, 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 : 13 (1 to 3); 14 (1 to 6); 15 (1 to 6); 16 (1 to 6); 17 (1 to 5); 126 (3, 4); 127 (1, 3, 4); 128 (1, 2, 4); 129 (1, 2, 4); 131 (1, 2, 4); 132 (1 to 4); 133 (1, 3, 4); 134 (1, 2, 4); 135 (1, 2, 4); 136 (1, 3, 4); 137 (1, 3, 4); 138 (1 to 4); 139 (1 to 6); 141 (1 to 6); 142 (1 to 6); 143 (1 to 6); 144 (1 to 6); 145 (1 to 6); 146 (1 to 6); 147 (1 to 6); 148 (1 to 6); 149 (1 to 6); 151 (1 to 6); 152 (1 to 6); 153 (1 to 6); 154 (1 to 6); 155 (1 to 6); 156 (1 to 6); 157 (1 to 6); 158 (1 to 6); 159 (1 to 6); 161 (1 to 6); 162 (1 to 6); 163 (1 to 6); 164 (1 to 6); 165 (1 to 6); 166 (1 to 6); 167 (1 to 6); 168 (1 to 6); 169 (1 to 6); 171 (1 to 8, 11, 12); 172 (1, 2, 4 to 9, 11); 173 (1 to 9, 11, 12); 174 (1 to 9, 11, 12); 175 (1 to 9, 11, 12); 176 (1 to 9, 11, 12); 177 (1 to 9, 11, 12); 178 (1 to 9, 11, 12); 179 (1 to 9, 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 : 121 (1, 2, 4); 122 (1-2, 3, 4); 123 (1-4); 124 (1, 2, 3-4); 125 (1, 2-3, 4); 126 (1-2, 3, 4); 127 (1-2, 3, 4); 128 (1, 2-3, 4); 129 (1, 2-3, 4); 130 (1, 2, 3-4); 131 (1, 2-3, 4); 132 (1-4); 133 (1-2, 3, 4); 134 (1, 2-3, 4); 135 (1, 2-3, 4); 136 (1-2, 3, 4); 137 (1-2, 3, 4); 138 (1-4); 139 (1-6); 140 (1-6); 141 (1-6); 142 (1-6); 143 (1-6); 144 (1-6); 145 (1-6); 146 (1-6); 147 (1-6); 148 (1-6); 149 (1-6); 150 (1-6); 151 (1-6); 152 (1-4, 6); 153 (1-6); 154 (1-6); 155 (1-6); 156 (1-6); 157 (1-6); 158 (1-6); 159 (1-6); 160 (1-6); 161 (1-6); 162 (1-6); 163 (1-6); 164 (1-6); 165 (1-6); 166 (supplement-1, 1-6); 167 (1-6); 168 (1-6); 169 (1-6); 170 (1-4, 5-6); 171 (1-7, 8-9, 10-12); 172 (1, 2-3, 4-10, 11-12); 173 (1-12); 174 (1-11)
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