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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, 2‐3, 4); 3 (, 1 to 4); 4 (, 1 to 4); 5 (, 1 to 4); 6 (, 1 to 4); 7 (, 1 to 4); 8 (, 1, 2, 3‐4); 9 (, 1 to 6); 10 (, 1 to 12); 11 (, 1 to 12); 12 (, 1 to 8, 9‐10, 11, 12); 13 (, 1 to 12); 14 (, 1 to 12); 15 (, 1 to 12); 16 (, 1 to 12); 17 (, 1 to 12); 18 (, 1 to 12); 19 (, 1 to 12); 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 (, 5); 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); 131 (, 1 to 6); 132 (, 1 to 6); 133 (, 1 to 6); 134 (, 1 to 6); 135 (, 1 to 6); 136 (, 1 to 6); 137 (, 1 to 6); 138 (, 1 to 6); 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 12); 169 (, 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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1 to 43
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CLOCKSS Archive
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Preserved
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2026-02-09
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1, 12, 32, 41, 55 to 170
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Portico
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Preserved
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2026-02-12
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Preserved : 1956/1957: 1(1-4), 1957/1958: 2(1-4), 1958/1959: 3(1-4), 1959: 4(1-4), 1959/1960: 5(1-4), 1960/1961: 6(1-4), 1961: 7(1-4), 1961: 8(1-4), 1962: 9(1-6), 1963: 10(1-12), 1964: 11(1-12), 1965: 12(1-12), 1966: 13(1-12), 1967: 14(1-12), 1968: 15(1-12), 1969: 16(1-12), 1970: 17(1-12), 1971: 18(1-12), 1972: 19(1-12), 1973: 20(1-6), 1973: 21(1-6), 1974: 22(1-6), 1974: 23(1-6), 1975: 24(1-6), 1975: 25(1-6), 1976: 26(1-6), 1976: 27(1-6), 1977: 28(1-6), 1977: 29(1-6), 1978: 30(1-6), 1978: 31(1-6), 1979: 32(1-6), 1979: 33(1-6), 1980: 34(1-6), 1980: 35(1-6), 1981: 36(1-6), 1981/1982: 37(1-6), 1982: 38(1-6), 1982: 39(1-6), 1983: 40(1-6), 1983: 41(1-6), 1984: 42(1-6), 1984: 43(1-6), 1985: 44(1-6), 1985: 45(1-6), 1986: 46(1-6), 1986: 47(1-6), 1987: 48(1, S 1, 2-6), 1987: 49(1-6), 1988: 50(1-6), 1988: 51(1-6), 1989: 52(1-6), 1989: 53(1-6), 1990: 54(1-6), 1990: 55(1-6), 1991: 56(1-6), 1991: 57(1, S 1, s1-6), 1992: 58(1-6), 1992: 59(1-6), 1993: 60(1-6), 1993: 61(1-6), 1994: 62(1-6), 1994: 63(1-6), 1995: 64(1, S 1, 2-6), 1995: 65(1, S 1, 2-6), 1996: 66(1, S 1, 2, S 2, 3-6), 1996: 67(1, S 1, 2-6), 1997: 68(1-6), 1997: 69(1-6), 1998: 70(1-3), 1998: 71(1-3), 1999: 72(1-3), 1999: 73(1, S1, 2-3), 2000: 74(1-3), 2000: 75(1-3), 2001: 76(1-3), 2001: 77(1-3), 2001: 78(1, S1, 2-3), 2001: 79(1-3), 2002: 80(1-3), 2002: 81(1-3), 2002: 82(1-3), 2002: 83(1-3), 2003: 84(1-3), 2003: 85(1-3), 2003: 86(1-3), 2003: 87(1-3), 2004: 88(1-3), 2004: 89(1-6), 2004: 90(1-3), 2004: 91(1-3), 2005: 92(1-3, 6), 2005: 93(1-3), 2005: 94(1-5), 2005: 95(1-5), 2006: 96(1-5), 2006: 97(1-5), 2006: 98(1-5), 2006: 99(1-5), 2007: 100(1-5), 2007: 101(1-6), 2007: 102(1-6), 2007: 103(1-6), 2008: 104(1-6), 2008: 105(1-6), 2008: 106(1-6), 2008: 107(1-6), 2009: 108(1-6), 2009: 109(1-6), 2009: 110(1-6), 2009: 111(1-6), 2010: 112(1-6), 2010: 113(1-6), 2010: 114(1-6), 2010: 115(1-6), 2011: 116(1-6), 2011: 117(1-6), 2011: 118(1-6), 2011: 119(1-6), 2012: 120(1-6), 2012: 121(1-6), 2012: 122(1-6), 2012: 123(1-6), 2013: 124(1-6), 2013: 125(1-6), 2013: 126(1-6), 2013: 127(1-6), 2014: 128(1-6), 2014: 129(1-6), 2014: 130(1-6), 2014: 131(1-6), 2015: 132(1-6), 2015: 133(1-6), 2015: 134(1, S1, 2-6), 2015: 135(1-6), 2016: 136(1, S1, 2-6), 2016: 137(1-6), 2016: 138(1, S1, 2-6), 2016: 139(1, S1, 2, S2, 3-6), 2017: 140(1-6), 2017: 141(1-6), 2017: 142(1, S1, 2, S2, 3-6), 2017: 143(1-6), 2018: 144(1-6), 2018: 145(1-6), 2018: 146(1-6), 2018: 147(1-6), 2019: 148(1-6), 2019: 149(1-6), 2019: 150(1, S1, 2-6), 2019: 151(1-6), 2020: 152(1-6), 2020: 153(1-6), 2020: 154(1-6), 2020: 155(1-6), 2021: 156(1-6), 2021: 157(1-6), 2021: 158(1-6), 2021: 159(1-6), 2022: 160(1-6), 2022: 161(1-6), 2022: 162(1, S1, 2-6), 2022: 163(1-6), 2023: 164(1-6), 2023: 165(1-6), 2023: 166(1, S1, 2-6), 2023: 167(1-6), 2024: 168(1-12), 2025: 169(1, S1, 2-12), 2026: 170(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 : 1 (1 to 6); 7 (1 to 6); 8 (1 to 6); 9 (, 1 to 6); 11 (, 1 to 6); 12 (, 1 to 6); 13 (, 1 to 6); 14 (, 1 to 6); 15 (S1, 1 to 6); 16 (, 1 to 6); 17 (1 to 6); 18 (, 1 to 6); 19 (, 1 to 6); 68 (1 to 6); 69 (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); 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); 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); 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); 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); 131 (1 to 6); 132 (1 to 6); 133 (1 to 6); 134 (, 1 to 6); 135 (1 to 6); 136 (, 1 to 6); 137 (1 to 6); 138 (, 1 to 6); 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 5); 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 (S1, 1 to 6); 163 (1 to 6); 164 (1 to 6); 165 (1 to 6); 166 (S1, 1 to 6); 167 (1, 3, 5, 6); 168 (1 to 9, 11); 169 (S1, 1 to 9)
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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 6); 7 (1 to 6); 8 (1 to 6); 9 (, 1 to 6); 11 (, 1 to 6); 12 (, 1 to 6); 13 (, 1 to 6); 14 (, 1 to 6); 15 (S1, 1 to 6); 16 (, 1 to 6); 17 (1 to 6); 18 (, 1 to 6); 19 (, 1 to 6); 68 (1 to 6); 69 (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); 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); 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); 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); 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); 131 (1 to 6); 132 (1 to 6); 133 (1 to 6); 134 (, 1 to 6); 135 (1 to 6); 136 (, 1 to 6); 137 (1 to 6); 138 (, 1 to 6); 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 5); 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 (S1, 1 to 6); 163 (1 to 6); 164 (1 to 6); 165 (1 to 6); 166 (S1, 1 to 6); 167 (1, 3, 5, 6); 168 (1 to 9, 11); 169 (S1, 1 to 9)
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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 : 96 (s1, 1-6); 97 (s1, 1-6); 98 (1-6); 99 (s1, 1-6); 100 (1-6); 101 (s1, 1-6); 102 (s1, 1-6); 103 (s1, 1-5)
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Library of Congress
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Preserved
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2025-04-07
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32 (2); 55 (1); 61 (6); 69 (4); 72 (1); 78 (S1); 89 (6); 93 (3); 94 (2); 101 (4); 102 (6); 120 (s1); 121 (4); 123 (4); 125 (1); 127 (6); 128 (1 to 6); 129 (1 to 6); 130 (1 to 6, s1); 131 (1 to 6); 132 (1 to 6); 133 (1 to 6); 134 (1 to 6, S1); 135 (1 to 6); 136 (1 to 6, S1); 137 (1 to 6); 138 (1 to 6, S1); 139 (1, 4 to 6, S1); 140 (2 to 6); 141 (2, 4, 5); 142 (2, 5, 6, S1, S2); 143 (1, 2, 4 to 6); 144 (1, 2, 4 to 6); 145 (1, 2, 4 to 6); 146 (1 to 6); 147 (1 to 6); 148 (1, 3); 149 (1 to 5); 150 (1 to 6, S1); 151 (1 to 3, 5, 6); 152 (1 to 6); 153 (1 to 5); 154 (1 to 3, 6); 155 (1 to 6); 156 (1, 3 to 6); 157 (1 to 6); 158 (1 to 6); 159 (1 to 6); 160 (2 to 6); 161 (1 to 6); 162 (1 to 6, S1); 163 (1 to 6); 164 (1); 166 (1, 3 to 6, S1); 167 (1 to 4); 168 (4)
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