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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, 4); 12 (, 1); 13 (, 1); 14 (, 1); 15 (, 1); 16 (, 1 to 12); 17 (, 1 to 12); 18 (, 1 to 12); 19 (, 1 to 12); 20 (, 1 to 12); 21 (, 1 to 12); 22 (, 1 to 12); 23 (, 1 to 12); 24 (, 1 to 12); 25 (, 1 to 12); 26 (, 1 to 12); 27 (, 1 to 12); 28 (, 1 to 12); 29 (, 1); 30 (, 1); 31 (, 1); 32 (, 1); 33 (, 1); 34 (, 1 to 12); 35 (, 1 to 12); 36 (, 1 to 12); 37 (, 1 to 12); 38 (, 1 to 12); 39 (, 1 to 12); 40 (, 1 to 12); 41 (, 1 to 12); 42 (, 1 to 12); 43 (, 1 to 12); 44 (, 1 to 12); 45 (, 1 to 12); 46 (, 1 to 12); 47 (, 1 to 11, 12A); 48 (, 1 to 12); 49 (, 1 to 12); 50 (, 1 to 12); 51 (, 1 to 12); 52 (, 1 to 12); 53 (, 1 to 12); 54 (, 1 to 12); 55 (, 1 to 12); 56 (, 1 to 12); 57 (, 1 to 12); 58 (, 1 to 12); 59 (, 1 to 12); 60 (, 1 to 12); 61 (, 1 to 12); 62 (, 1 to 12); 63 (, 1 to 12); 64 (, 1 to 12); 65 (, 1 to 12); 66 (, 1 to 12); 67 (, 1 to 12); 68 (, 1 to 12); 69 (, 1 to 9, 11, 12); 70 (, 1 to 12); 71 (, 1 to 12); 72 (, 1 to 12); 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
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CLOCKSS Archive
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Preserved
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2026-02-09
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1 to 72
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Portico
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Preserved
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2026-02-12
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Preserved : 1970: 22(1-12), 1971: 23(1-12), 1972: 24(1-12), 1973: 25(1-12), 1974: 26(1-12), 1975: 27(1-12), 1976: 28(1-12), 1977: 29(1), 1978: 30(1), 1979: 31(1), 1980: 32(1), 1981: 33(1), 1982: 34(1-12), 1983: 35(1-12), 1984: 36(1-12), 1985: 37(1-12), 1986: 38(1-12), 1987: 39(1-12), 1988: 40(1-12), 1989: 41(1-12), 1990: 42(1-12), 1991: 43(1-12), 1992: 44(1-12), 1993: 45(1-12), 1994: 46(1-12), 1995: 47(1-11), 1996: 48(1-12), 1997: 49(1-12), 1998: 50(1-12), 1999: 51(1-12), 2000: 52(1-12), 2001: 53(1-12), 2002: 54(1-12), 2003: 55(1-12), 2004: 56(1-12), 2005: 57(1-12), 2006: 58(1-12), 2007: 59(1-12), 2008: 60(1-12), 2009: 61(1-12), 2010: 62(1-12), 2011: 63(1-12), 2012: 64(1-12), 2013: 65(1-12), 2014: 66(1-12), 2015: 67(1-12), 2016: 68(1-12), 2017: 69(1, S1, 2-12), 2018: 70(1-12), 2019: 71(1, S1, 2-12), 2020: 72(1-12)
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Portico
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Preserved
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2026-02-12
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Preserved : 1949: 1(1), 1950: 2(1), 1951: 3(1), 1952: 4(1), 1953: 5(1), 1954: 6(1), 1955: 7(1), 1956: 8(1), 1957: 9(1), 1958: 10(1, s_1), 1959: 11(1, s_1)
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LOCKSS Archive
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Preserved
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2026-02-09
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60 to 76
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CLOCKSS Archive
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In Progress
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2026-02-09
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60 to 71, 73 to 77
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CLOCKSS Archive
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Preserved
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2026-02-09
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72
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Portico
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Preserved
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2026-02-12
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Preserved : 2020: 11(4), 1960: 12(1, s_1), 1961: 13(1, s_1), 1962: 14(1, s_1), 1963: 15(1, s_1), 1964: 16(1-12), 1965: 17(1-12), 1966: 18(1-12), 1967: 19(1-12), 1968: 20(1-12), 1969: 21(1-12), 1970: 22(1-12), 1971: 23(1-12), 1972: 24(1-12), 1973: 25(1-12), 1974: 26(1-12), 1975: 27(1-12), 1976: 28(1-12), 1977: 29(1, s_1), 1978: 30(1, s_1), 1979: 31(1, s_1), 1980: 32(1, s_1), 1981: 33(1, s_1), 1982: 34(1-12), 1983: 35(1-12), 1984: 36(1-12), 1985: 37(1-12), 1986: 38(1-12), 1987: 39(1-12), 1988: 40(1-12), 1989: 41(1-12), 1990: 42(1-12), 1991: 43(1-12), 1992: 44(1-12), 1993: 45(1-12), 1994: 46(1-12), 1995: 47(1-12A), 1996: 48(1-12), 1997: 49(1-12), 1998: 50(1-12), 1999: 51(1-12), 2000: 52(1-12), 2001: 53(1-12), 2002: 54(1-12), 2003: 55(1-12), 2004: 56(1-12), 2005: 57(1-12), 2006: 58(1-12), 2007: 59(1-12), 2008: 60(1-12), 2009: 61(1-12), 2010: 62(1-12), 2011: 63(1-12), 2012: 64(1-12), 2013: 65(1-12), 2014: 66(1-12), 2015: 67(1-12), 2016: 68(1-12), 2017: 69(1-12), 2018: 70(1-12), 2019: 71(1-12), 2020: 72(1-12), 2021: 73(1-12), 2022: 74(1-12), 2023: 75(1-12), 2024: 76(1-12), 2025: 77(1-12), 2026: 78(1-2)
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LOCKSS Archive
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In Progress
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2026-02-09
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77
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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 : 3 (1 to 4, 5?6, 7 to 9, 11, 12); 4 (1 to 9, 11, 12); 5 (S9, 1 to 9, 11, 12); 6 (S1, 1 to 9, 11, 12); 7 (1 to 9, 11, 12); 49 (S1, 1 to 9, 11, 12); 51 (1 to 9, 11, 12); 52 (1 to 9, 11, 12); 53 (1 to 9, 11, 12); 54 (S1, 1 to 9, 11, 12); 55 (S1, 1 to 9, 11, 12); 56 (S1, 1 to 9, 11, 12); 57 (S1, 1 to 9, 11, 12); 58 (S1, 1 to 9, 11, 12); 59 (S1, 1 to 9, 11, 12); 61 (S1, 1 to 9, 11, 12); 62 (1 to 9, 11, 12); 63 (1 to 9, 11, 12); 64 (1 to 9, 11, 12); 65 (1 to 9, 11, 12); 66 (1 to 9, 11, 12); 67 (1 to 9, 11, 12); 68 (1 to 9, 11, 12); 69 (, 1 to 9, 11, 12); 71 (S1, 1 to 3, 5 to 9, 11, 12); 72 (1 to 9, 11, 12)
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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 : 3 (1 to 4, 5?6, 7 to 9, 11, 12); 4 (1 to 9, 11, 12); 5 (S9, 1 to 9, 11, 12); 6 (S1, 1 to 9, 11, 12); 7 (1 to 9, 11, 12); 49 (S1, 1 to 9, 11, 12); 51 (1 to 9, 11, 12); 52 (1 to 9, 11, 12); 53 (1 to 9, 11, 12); 54 (S1, 1 to 9, 11, 12); 55 (S1, 1 to 9, 11, 12); 56 (S1, 1 to 9, 11, 12); 57 (S1, 1 to 9, 11, 12); 58 (S1, 1 to 9, 11, 12); 59 (S1, 1 to 9, 11, 12); 61 (S1, 1 to 9, 11, 12); 62 (1 to 9, 11, 12); 63 (1 to 9, 11, 12); 64 (1 to 9, 11, 12); 65 (1 to 9, 11, 12); 66 (1 to 9, 11, 12); 67 (1 to 9, 11, 12); 68 (1 to 9, 11, 12); 69 (, 1 to 9, 11, 12); 71 (S1, 1 to 3, 5 to 9, 11, 12); 72 (1 to 9, 11, 12)
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