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Portico
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Preserved
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2026-02-12
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Preserved : 1937: 1(1-12), 1937/1938: 2(1-12), 1938: 3(1-12), 1939: 4(1-12), 1939: 5(1-12), 1940: 6(1-12), 1940: 7(1-12), 1941: 8(1-12), 1941: 9(1-12), 1942: 10(1-12), 1942/1943: 11(1-12), 1943: 12(1-12), 1943/1944: 13(1-12), 1944/1948: 14(1-12), 1949: 15(1-12), 1950: 16(1-12), 1951: 17(1-12), 1952: 18(1-12), 1953: 19(1-12), 1953/1954: 20(1-12), 1954: 21(1-12), 1955: 22(1-12), 1955: 23(1-12), 1956: 24(1-12), 1957: 25(1-4), 1957: 26(1-4), 1957: 27(1-4), 1958: 28(1-4), 1958/1959: 29(1-4), 1959: 30(1-4), 1959: 31(1-4), 1960: 32(1-4), 1960: 33(1-4), 1961: 34(1-4), 1961: 35(1-4), 1961: 36(1-4), 1962: 37(1-4), 1962: 38(1-4), 1962: 39(1-4), 1963: 40(1-4), 1963: 41(1-4), 1963: 42(1-4), 1964: 43(1-4), 1964: 44(1-4), 1964: 45(1-4), 1965: 46(1-4), 1965: 47(1-4), 1965: 48(1-4), 1966: 49(1-4), 1966: 50(1-4), 1966: 51(1-4), 1967: 52(1-4), 1967: 53(1-4), 1967: 54(1-4), 1968: 55(1-4), 1968: 56(1-4), 1968: 57(1-4), 1969: 58(1-4), 1969: 59(1-4), 1969: 60(1-4), 1970: 61(1-4), 1970: 62(1-4), 1970: 63(1-4), 1971: 64(1-4), 1971: 65(1-4), 1971: 66(1-4), 1972: 67(1-4)
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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 68 (1 to 6); 69 (, 1 to 6); 70 (, 1 to 6); 71 (, 1 to 6); 72 (, 1, 2-3, 4 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 9); 94 (, 1 to 6); 95 (, 1 to 7); 96 (, 1 to 6); 97 (, 1 to 7); 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 (, 3, 5, 6); 115 (, 1 to 6); 116 (, 1); 117 (, 1); 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
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Internet Archive
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Preserved
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2025-08-08
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75 to 101
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CLOCKSS Archive
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Preserved
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2026-02-09
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1 to 121
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LOCKSS Archive
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Preserved
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2026-02-09
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68 to 114
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Portico
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Preserved
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2026-02-12
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Preserved : 1973: 68(1-6), 1974: 69(1-6), 1975: 70(1-6), 1976: 71(1-6), 1977: 72(1-6), 1978: 73(1-6), 1979: 74(1-6), 1980: 75(1-6), 1981: 76(1-6), 1982: 77(1-6), 1983: 78(1-6), 1984: 79(1-6), 1985: 80(1-6), 1986: 81(1-6), 1987: 82(1-6), 1988: 83(1-6), 1989: 84(1-6), 1990: 85(1-6), 1991: 86(1-6), 1992: 87(1-6), 1993: 88(1-6), 1994: 89(1-6), 1995: 90(1-6), 1996: 91(1-6), 1997: 92(1-6), 1998: 93(1-6), 1999: 94(1-6), 2000: 95(1-6), 2001: 96(1-6), 2002: 97(1, S 1, 2-6), 2003: 98(1-6), 2004: 99(1-6), 2005: 100(1-6), 2006: 101(1-6), 2007: 102(1-6), 2008: 103(1-6), 2009: 104(1-6), 2010: 105(1-6), 2011: 106(1-6), 2012: 107(1-6), 2013: 108(1-6), 2014: 109(1-6), 2015: 110(1-6), 2016: 111(1-6), 2017: 112(1-6), 2018: 113(1-6), 2019: 114(1-6), 2020: 115(1-6), 2021: 116(1), 2022: 117(1)
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Library of Congress
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Preserved
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2025-04-07
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111 (2); 112 (2, 4); 113 (1 to 6); 114 (1 to 6); 115 (1 to 6); 116 (1); 117 (1); 118 (1); 119 (1 to 5)
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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 118 (1); 119 (, 1 to 6); 120 (, 1 to 3); 2023; 2024; 2025
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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); 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); 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); 117; 118; 119 (2 to 6)
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National Digital Preservation Program, China
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Preserved
|
2025-12-04
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Preserved : 1 (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); 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); 117; 118; 119 (2 to 6)
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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 : 92 (4); 93 (1-6); 94 (1-6); 95 (1-7); 96 (1-6); 97 (1-7); 98 (1-6); 99 (1-6); 100 (1-6); 101 (1-6); 102 (1-6); 103 (1-6); 104 (1-6); 105 (1-6); 106 (1-6); 107 (1-6); 108 (1-6); 109 (1-6); 110 (1-6); 111 (1-6); 112 (1-6); 113 (1-6); 114 (1-6)
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