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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); 2 (, 1); 3 (, 1); 4 (, 1); 5 (, 1); 6 (, 1); 7 (, 1); 8 (, 1); 9 (, 1); 10 (, 1); 11 (, 1); 12 (, 1); 13 (, 1); 14 (, 1); 15 (, 1); 16 (, 1); 17 (, 1); 18 (, 1); 19 (, 1); 20 (, 1); 21 (, 1); 22 (, 1); 23 (, 1); 24 (, 1); 25 (, 1); 26 (, 1); 27 (, 1); 28 (, 1); 29 (, 1); 30 (, 1); 31 (, 1); 32 (, 1); 33 (, 1); 34 (, 1); 35 (, 1); 36 (, 1); 37 (, 1); 38 (, 1); 39 (, 1); 40 (, 1); 41 (, 1); 42 (, 1); 43 (, 1); 44 (, 1); 45 (, 1); 46 (, 1); 47 (, 1); 48 (, 1); 49 (, 1); 50 (, 1); 51 (, 1); 52 (, 1); 53 (, 1); 54 (, 1); 55 (, 1); 56 (, 1 to 4); 57 (, 1 to 4); 58 (, 1 to 4); 59 (, 1 to 4); 60 (, 1 to 4); 61 (, 1 to 4); 62 (, 1 to 4); 63 (, 1 to 4); 64 (, 1 to 4); 65 (, 1 to 4); 66 (, 1 to 4); 67 (, 1 to 3); 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 to 4); 83 (, 1 to 4); 84 (, 1 to 4); 85 (, 1 to 4); 86 (, 1 to 4); 87 (, 1 to 4); 88 (, 1 to 4); 89 (, 1 to 4); 90 (, 1 to 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 4); 105 (, 1 to 4); 106 (, 1 to 4); 107 (, 1 to 4); 108 (, 1 to 4); 109 (, 1, 2); 1916; 1917; 1918; 1919; 1920; 1921; 1922; 1923; 1924; 1925; 1926; 1927; 1928; 1929; 1930; 1931; 1932; 1933; 1934; 1935; 1936; 1937; 1938; 1939; 1940; 1941; 1942; 1943; 1944; 1945; 1946; 1948; 1949; 1950; 1951; 1952; 1953; 1954; 1955; 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 80
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CLOCKSS Archive
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Preserved
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2026-02-09
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1 to 109
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Portico
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Preserved
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2026-02-12
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Preserved : 1917: 2(1)
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Portico
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Preserved
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2026-02-12
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Preserved : 1919: 4(1)
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Portico
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Preserved
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2026-02-12
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Preserved : 1923: 8(1), 1924: 9(1)
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Portico
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Preserved
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2026-02-12
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Preserved : 1926: 11(1), 1927: 12(1)
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Portico
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Preserved
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2026-02-12
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Preserved : 1929: 14(1), 1930: 15(1)
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Portico
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Preserved
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2026-02-12
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Preserved : 1932: 17(1)
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Portico
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Preserved
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2026-02-12
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Preserved : 1936: 21(1)
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Portico
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Preserved
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2026-02-12
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Preserved : 1938: 23(1)
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Portico
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Preserved
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2026-02-12
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Preserved : 1943: 28(1), 1944: 29(1), 1945: 30(1)
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Portico
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Preserved
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2026-02-12
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Preserved : 1948: 32(1)
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Portico
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Preserved
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2026-02-12
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Preserved : 1956: 40(1)
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Portico
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Preserved
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2026-02-12
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Preserved : 1958: 42(1)
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Portico
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Preserved
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2026-02-12
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Preserved : 1963: 47(1)
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Portico
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Preserved
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2026-02-12
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Preserved : 1966: 50(1), 1967: 51(1)
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Portico
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Preserved
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2026-02-12
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Preserved : 1969: 53(1)
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Portico
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Preserved
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2026-02-12
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Preserved : 1971: 55(1)
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Portico
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Preserved
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2026-02-12
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Preserved : 1973: 57(4), 1974: 58(1)
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Portico
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Preserved
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2026-02-12
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Preserved : 1976: 60(2)
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Portico
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Preserved
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2026-02-12
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Preserved : 1979: 63(1)
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Portico
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Preserved
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2026-02-12
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Preserved : 1982: 66(2-3)
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Portico
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Preserved
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2026-02-12
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Preserved : 1983: 67(4)
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Portico
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Preserved
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2026-02-12
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Preserved : 1985: 69(1, 3)
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Portico
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Preserved
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2026-02-12
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Preserved : 1987: 71(3-4)
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Portico
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Preserved
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2026-02-12
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Preserved : 1988: 72(4), 1989: 73(1)
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Portico
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Preserved
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2026-02-12
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Preserved : 1997: 81(1-4), 1998: 82(1-4), 1999: 83(1-4), 2000: 84(1-4), 2001: 85(1-4), 2002: 86(1-4), 2003: 87(1-4), 2004: 88(1-4), 2005: 89(1-4), 2006: 90(1-4), 2007: 91(1-4), 2008: 92(1-4), 2009: 93(1-4), 2010: 94(1-4), 2011: 95(1-4), 2012: 96(1-4), 2013: 97(1-4), 2014: 98(1-4), 2015: 99(2-4), 2016: 100(1-4), 2017: 101(1-4), 2018: 102(1-4), 2019: 103(1-4), 2019/2020: 104(1-4), 2021: 105(1-4), 2022: 106(1-4), 2023: 107(1-4), 2024: 108(1-4), 2025: 109(1-4)
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LOCKSS Archive
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In Progress
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2026-02-09
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96, 103
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LOCKSS Archive
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Preserved
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2026-02-09
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97 to 102
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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 : 81 (2-4); 82 (1-4); 83 (1-4); 84 (1-4); 85 (1-4); 86 (1-4); 87 (1-4); 88 (1-4); 89 (1-4); 90 (1-4); 91 (1-4, 11-12); 92 (1-4); 93 (1-4); 94 (1-4); 95 (1-4); 96 (1-4); 97 (1-4); 98 (1-4); 99 (1-4); 100 (1-4); 101 (1-4); 102 (1-4); 103 (1-4)
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Library of Congress
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Preserved
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2025-04-07
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102 (2 to 4); 103 (1 to 4); 104 (1 to 4); 105 (1 to 4); 106 (1 to 4); 107 (1 to 4); 108 (1 to 3)
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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 4); 9 (1 to 4); 11 (1 to 4); 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); 81 (1 to 4); 82 (1 to 4); 83 (1 to 4); 84 (1 to 4); 85 (1 to 4); 86 (1 to 4); 87 (1 to 4); 88 (1 to 4); 89 (1 to 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)
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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 4); 9 (1 to 4); 11 (1 to 4); 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); 81 (1 to 4); 82 (1 to 4); 83 (1 to 4); 84 (1 to 4); 85 (1 to 4); 86 (1 to 4); 87 (1 to 4); 88 (1 to 4); 89 (1 to 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)
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