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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); 2 (, 1, 2); 3 (, 1 to 3); 4 (, 1, 2); 5 (, 1, 2); 6 (, 1, 2); 7 (, 1, 2); 8 (, 1, 2); 9 (, 1, 2); 10 (, 1, 2); 11 (, 1, 2); 12 (, 1, 2); 13 (, 1 to 4); 14 (, 1 to 3); 15 (, 1 to 3); 16 (, 1 to 3); 17 (, 1 to 4); 18 (, 1, 2); 19 (, 1 to 3); 20 (, 1 to 3); 21 (, 1, 2); 22 (, 1 to 3); 23 (, 1 to 3); 24 (, 1 to 3); 25 (, 1 to 3); 26 (, 1 to 3); 27 (, 1 to 4); 28 (, 1 to 4); 29 (, 1 to 3); 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 (, 1-2, 3, 4); 42 (, 1 to 4); 43 (, 1 to 4); 44 (, 1, 2, 3-4); 45 (, 1 to 4); 46 (, 1 to 3); 47 (, 1, 2-3, 4); 48 (, 1-2, 3-4); 49 (, 1 to 4); 50 (, 1, 3, 4); 56 (, 1-3, 4); 57 (, 1 to 4); 58 (, 1 to 4); 59 (, 1 to 4); 60 (, 1 to 4); 61 (, 1-2, 3-4); 62 (, 1-2, 3-4); 63 (, 1, 2-3); 64 (, 1 to 4); 65 (, 1, 2, 3-4); 66 (, 1, 2-3, 4); 67 (, 1, 2, 3-4); 68 (, 1, 2-4); 69 (, 1-2, 3-4); 70 (, 1, 2, 3-4); 71 (, 1-2, 3-4); 72 (, 1-2, 3-4); 73 (, 1-2, 3-4); 74 (, 1-2, 3-4); 75 (, 1-2, 3, 4); 76 (, 1-2, 3-4); 77 (, 1-2, 3-4); 78 (, 1 to 3); 79 (, 1, 2); 80 (, 1 to 3); 81 (, 1 to 3); 82 (, 1 to 3); 83 (, 2, 3); 84 (, 1 to 3); 85 (, 1 to 3); 86 (, 1-2, 3); 87 (, 1 to 3); 88 (, 1 to 3); 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); 1930; 1931; 1932; 1933; 1934; 1935; 1936; 1937; 1938; 1939; 1940; 1941; 1942; 1943; 1944; 1945; 1946; 1947; 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; 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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CLOCKSS Archive
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Preserved
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2026-02-09
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ahead-of-print to 96
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Portico
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Preserved
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2026-02-12
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Preserved : 1956: 27(1-4), 1957: 28(1-4), 1958: 29(1-3), 1959: 30(1-4), 1960: 31(1-4), 1961: 32(1-4), 1962: 33(1-4), 1963: 34(1-4), 1964: 35(1-4), 1965: 36(1), 1966: 37(1, sup1)
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Portico
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Preserved
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2026-02-12
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Preserved : 1967: 38(1-4), 1968: 39(1-4), 1969: 40(1-4), 1970: 41(3-4), 1971: 42(1-4), 1972: 43(1-4), 1973: 44(1-2), 1974: 45(1-4), 1975: 46(1-3), 1976: 47(1, 4)
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Portico
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Preserved
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2026-02-12
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Preserved : 1978: 49(1-4), 1979: 50(1, 3-4), 1980: 51(1-4), 1981: 52(1-4), 1982: 53(1-4), 1983: 54(1-4), 1984: 55(1-4), 1985: 56(4), 1986: 57(1-4), 1987: 58(1-4), 1988: 59(1-4), 1989: 60(1-4)
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Portico
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Preserved
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2026-02-12
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Preserved : 1992: 63(1), 1993: 64(1-4), 1994: 65(1-2), 1995: 66(1, 4), 1996: 67(1-2), 1997: 68(1)
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Portico
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Preserved
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2026-02-12
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Preserved : 1999: 70(1-2)
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Portico
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Preserved
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2026-02-12
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Preserved : 2000: 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 : 2002: 73(3-4)
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Portico
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Preserved
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2026-02-12
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Preserved : 2004: 75(3)
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Portico
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Preserved
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2026-02-12
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Preserved : 2007: 78(1-3), 2008: 79(1-2), 2009: 80(1-3), 2010: 81(1-3), 2011: 82(1-3), 2012: 83(1-3), 2013: 84(1-3), 2014: 85(1-3), 2015: 86(1-3), 2016: 87(1-3), 2017: 88(1-3), 2018: 89(1-4), 2019: 90(1-4), 2020: 91(1-4), 2021: 92(1-4), 2022: 93(1-4), 2023: 94(1-4), 2024: 95(1-4), 2025: 96(1-4)
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LOCKSS Archive
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Preserved
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2026-02-09
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1 to 95
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CLOCKSS Archive
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Preserved
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2026-02-09
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79 to 88
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LOCKSS Archive
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In Progress
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2026-02-09
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96
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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 : 7 (1, 2, 3-4); 8 (1 to 3); 9 (1 to 4); 68 (1, 2-4); 69 (1-2, 3-4); 71 (1-2, 3-4); 72 (sup15, 1-2, 3-4); 73 (1-2, 3-4); 74 (1-2, 3-4); 75 (1-2, 3, 4); 76 (1-2, 3-4); 77 (1-2, 3-4); 78 (1 to 3); 79 (1, 2); 81 (1 to 3); 82 (1 to 3); 83 (1 to 3); 84 (1 to 3); 85 (1 to 3); 86 (1-2, 3); 87 (1 to 3); 88 (1 to 3); 89 (1 to 4); 91 (1 to 4); 92 (1 to 4); 93 (1 to 4); 94 (1 to 4); 95 (1 to 4)
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Library of Congress
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Preserved
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2025-04-07
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88 (1 to 3); 89 (1 to 4); 90 (1, 3, 4); 91 (1 to 4); 92 (1 to 4); 93 (1 to 4); 94 (1 to 4); 95 (1 to 3)
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