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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 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 6); 69 (, 1 to 6); 70 (, 1 to 6); 71 (, 1 to 6); 72 (, 1 to 6); 73 (, 1 to 6); 74 (, 1 to 6); 75 (, 1 to 6); 76 (, 1 to 6); 77 (, 1 to 6); 78 (, 1 to 6); 79 (, 1 to 6); 80 (, 1 to 6); 81 (, 1 to 6); 82 (, 1 to 6); 83 (, 1 to 6); 84 (, 1 to 6); 85 (, 1 to 6); 86 (, 1 to 6); 87 (, 1 to 6); 88 (, 1 to 6); 89 (, 1 to 6); 90 (, 1 to 6); 91 (, 1 to 6); 92 (, 1 to 6); 93 (, 1 to 6); 94 (, 1 to 6); 95 (, 1 to 6); 96 (, 1 to 6); 97 (, 1 to 6); 98 (, 1 to 6); 99 (, 1 to 6); 100 (, 1 to 6); 101 (, 1 to 6); 102 (, 1 to 6); 103 (, 1 to 6); 104 (, 1 to 6); 105 (, 1 to 6); 106 (, 1 to 6); 107 (, 1 to 6); 108 (, 1 to 6); 109 (, 1 to 6); 110 (, 1 to 6); 111 (, 1 to 6); 112 (, 1 to 6); 113 (, 1 to 6); 114 (, 1 to 6); 115 (, 1 to 6); 116 (, 1 to 6); 117 (, 1 to 6); 118 (, 1 to 6); 119 (, 1 to 6); 120 (, 1 to 6); 121 (, 1 to 6); 122 (, 1 to 6); 123 (, 1 to 6); 124 (, 1 to 6); 125 (, 1 to 6); 126 (, 1 to 6); 127 (, 1 to 6); 128 (, 1 to 6); 129 (, 1 to 6); 130 (, 1 to 6, 8 to 12); 131 (, 1 to 6); 132 (, 1 to 6); 133 (, 1 to 6); 134 (, 1 to 6); 135 (, 1 to 7); 136 (, 1 to 6); 137 (, 1 to 6); 138 (, 1 to 7, 10); 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 6); 171 (, 1 to 6); 172 (, 1 to 6); 173 (, 1 to 6); 174 (, 1 to 6); 175 (, 1 to 6); 176 (, 1 to 6); 177 (, 1 to 6); 178 (, 1 to 6); 1956; 1957; 1958; 1959; 1960; 1961; 1962; 1963; 1964; 1965; 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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43 to 84
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LOCKSS Archive
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In Progress
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2026-02-09
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Portico
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Preserved
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2026-02-12
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Preserved : 1956: 41(1-6), 1956: 42(1-6), 1957: 43(1-6), 1957: 44(1-6), 1958: 45(1-6), 1958: 46(1-6), 1959: 47(1-6), 1959: 48(1-6), 1960: 49(1-6), 1961: 50(1-6), 1961: 51(1-6), 1961/1962: 52(1-6), 1962/1963: 53(1-6), 1963/1964: 54(1-6), 1964: 55(1-6), 1963/1964: 56(1-6), 1964: 57(1-6), 1964: 58(1-6), 1965: 59(1-6), 1965: 60(1-6), 1966: 61(1-6), 1966: 62(1-6), 1967: 63(1-6), 1967: 64(1-6), 1968: 65(1-6), 1968: 66(1-6), 1969: 67(1-6), 1969: 68(1-6), 1970: 69(1-6), 1970: 70(1-6), 1971: 71(1-6), 1971: 72(1-6), 1972: 73(1-6), 1972: 74(1-6), 1973: 75(1-6), 1973: 76(1-6), 1974: 77(1-6), 1974: 78(1-6), 1975: 79(1-6), 1975: 80(1-6), 1976: 81(1-6), 1976: 82(1-6), 1977: 83(1-6), 1977: 84(1-6), 1978: 85(1-6), 1978: 86(1-6), 1979: 87(1-6), 1979: 88(1-6), 1980: 89(1-6), 1980: 90(1-6), 1981: 91(1-6), 1981: 92(1-6), 1982: 93(1-6), 1982: 94(1-6), 1983: 95(1-6), 1983: 96(1-6), 1984: 97(1-6), 1984: 98(1-6), 1985: 99(1-6), 1985: 100(1-6), 1986: 101(1-6), 1986: 102(1-6), 1987: 103(1-6), 1987: 104(1-6), 1988: 105(1-6), 1988: 106(1-6), 1989: 107(1-6), 1989: 108(1-6), 1990: 109(1-6), 1990: 110(1-6), 1991: 111(1-6), 1991: 112(1-6), 1992: 113(1-6), 1992: 114(1-6), 1993: 115(1-6), 1993: 116(1-6), 1994: 117(1-6), 1994: 118(1-6), 1995: 119(1-6), 1995: 120(1-6), 1996: 121(1-6), 1996: 122(1-6), 1997: 123(1-2, 4, 6), 1997: 124(5), 1998: 125(4, 6), 1998: 126(5), 1999: 127(1, 4-5)
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CLOCKSS Archive
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Preserved
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2026-02-09
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41 to 179
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Portico
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Preserved
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2026-02-12
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Preserved : 2000: 130(1, 3, 5, 8-9, 11)
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Portico
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Preserved
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2026-02-12
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Preserved : 2002: 133(1-2)
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Portico
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Preserved
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2026-02-12
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Preserved : 2004: 137(2)
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Portico
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Preserved
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2026-02-12
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Preserved : 2005: 140(3-4, 6), 2006: 141(2, 4), 2006: 142(1, 6), 2007: 144(3-4), 2008: 145(5), 2008: 146(2), 2009: 148(2)
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Portico
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Preserved
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2026-02-12
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Preserved : 2010: 149(5), 2011: 151(4), 2012: 153(1, 5), 2012/2013: 154(1-6), 2013: 155(1-4), 2013/2014: 156(1-6), 2014: 157(1-6), 2014/2015: 158(1-6), 2015: 159(1-6), 2015/2016: 160(1-6), 2016: 161(1-6), 2016/2017: 162(1-6), 2017: 163(1-6), 2017/2018: 164(1-6), 2018: 165(1-6), 2018/2019: 166(1-6), 2019: 167(2-6), 2019/2020: 168(1-6), 2020: 169(1-6), 2020/2021: 170(1-6), 2021: 171(1-6), 2021/2022: 172(1-6), 2022: 173(1-6), 2022/2023: 174(1-6), 2023: 175(1-6), 2023/2024: 176(1-6), 2024: 177(1-6), 2025: 178(3-6), 2025: 179(1-6)
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Library of Congress
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Preserved
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2025-04-07
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164 (1, 2, 4 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 6); 171 (1 to 6); 172 (1 to 6); 173 (1 to 6); 174 (1 to 6); 175 (1 to 6); 176 (1 to 6); 177 (1 to 5)
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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 6, 8, 12); 14 (1 to 6); 15 (1 to 6); 16 (1 to 6); 17 (1 to 6); 123 (1 to 6); 124 (1 to 6); 125 (1 to 6); 126 (1 to 6); 127 (1 to 6); 128 (1 to 6); 129 (1 to 6); 131 (1 to 6); 132 (1 to 6); 133 (1 to 6); 134 (1 to 6); 135 (1 to 7); 136 (1 to 6); 137 (1 to 6); 138 (1 to 9); 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 (4 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 6); 172 (1 to 6); 173 (1 to 6); 174 (1 to 6); 175 (1 to 6); 176 (1); 177 (2 to 6); 178 (1, 2)
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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 6, 8, 12); 14 (1 to 6); 15 (1 to 6); 16 (1 to 6); 17 (1 to 6); 123 (1 to 6); 124 (1 to 6); 125 (1 to 6); 126 (1 to 6); 127 (1 to 6); 128 (1 to 6); 129 (1 to 6); 131 (1 to 6); 132 (1 to 6); 133 (1 to 6); 134 (1 to 6); 135 (1 to 7); 136 (1 to 6); 137 (1 to 6); 138 (1 to 9); 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 (4 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 6); 172 (1 to 6); 173 (1 to 6); 174 (1 to 6); 175 (1 to 6); 176 (1); 177 (2 to 6); 178 (1, 2)
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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 : 15 (1 to 6); 148 (5, 6); 149 (1 to 6); 151 (1, 2)
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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 : 15 (1 to 6); 148 (5, 6); 149 (1 to 6); 151 (1, 2)
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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 : 130 (9-12); 131 (1-6); 132 (1-6); 133 (1-6); 134 (1-6); 135 (Supplement?, 1-7); 136 (1-6); 137 (1-6); 138 (1, 2, 4-6, 10); 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 (1-6); 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 (1-6); 167 (1-6)
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