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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 18 (1, 2); 19 (, 1 to 4); 20 (, 1 to 4); 21 (, 1 to 3); 22 (, 1 to 4); 23 (, 1 to 4); 24 (, 1 to 3); 25 (, 1, 2, 4); 26 (, 1 to 4); 27 (, 1 to 4); 28 (, 1 to 4); 29 (, 1 to 4); 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 to 4); 42 (, 1 to 4); 43 (, 1, 3‐4); 44 (, 1 to 4); 45 (, 1 to 4); 46 (, 1 to 4); 47 (, 1 to 4); 48 (, 1 to 4); 49 (, 1 to 4); 50 (, 1 to 4); 51 (, 1 to 4); 52 (, 1 to 4); 53 (, 1 to 4); 54 (, 1 to 4); 55 (, 1 to 4); 56 (, 1 to 6); 57 (, 1 to 6); 58 (, 1 to 6); 59 (, 1 to 6); 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 3); 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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41 to 61
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Portico
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Preserved
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2026-02-12
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Preserved : 1952/1953: 1(1-6), 1956: 3(10-11), 1957/1958: 4(1, 5), 1958: 5(2-3), 1959: 6(3-4), 1960: 7(1-2, 4), 1961: 8(1-4), 1962: 9(1-4), 1963: 10(1-4), 1964: 11(1-4), 1965: 12(1-4), 1966: 13(1-4), 1967: 14(1-4), 1968: 15(1-4), 1969: 16(1-4), 1970: 17(1-4), 1971: 18(1-4), 1972: 19(1-4), 1973: 20(1-4), 1974: 21(1-3), 1975: 22(1-4), 1976: 23(1-4), 1977: 24(1-3), 1978: 25(1-2, 4), 1979: 26(1-4), 1980: 27(1-4), 1981: 28(1-4), 1982: 29(1-4), 1983: 30(1-4), 1984: 31(1-4), 1985: 32(1-4), 1986: 33(1-4), 1987: 34(1-4), 1988: 35(1-4), 1989: 36(1-4), 1990: 37(1-4), 1991: 38(1-4), 1992: 39(1-4), 1993: 40(1-4), 1994: 41(1-4), 1995: 42(1-4), 1996: 43(1, 3-4), 1997: 44(1-4), 1998: 45(1-4), 1999: 46(1-4), 2000: 47(1-4), 2001: 48(1-4), 2002: 49(1-4), 2003: 50(1-4), 2004: 51(1-4), 2005: 52(1-4), 2006: 53(1-4), 2007: 54(1-4), 2008: 55(1-4), 2009: 56(1-6), 2010: 57(1-6), 2011: 58(1-6), 2012: 59(1-6), 2013: 60(1-6), 2014: 61(1-6), 2015: 62(1, S1, 2-6), 2016: 63(1-6), 2017: 64(1, S1, 2, S2, 3-6), 2018: 65(1-6), 2019: 66(1, S1, 2-6), 2020: 67(1-6), 2021: 68(1, S1, 2-6), 2022: 69(1-6), 2023: 70(1, S1, 2-6), 2024: 71(1-6), 2025: 72(1, S1, 2-6), 2026: 73(1)
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CLOCKSS Archive
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Preserved
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2026-02-09
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18, 38 to 72
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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 : 5 (1 to 4); 6 (, 1 to 6); 7 (S1, 1 to 6); 44 (1 to 4); 45 (1 to 4); 46 (1 to 4); 47 (1 to 4); 48 (1 to 4); 49 (1 to 4); 51 (1 to 4); 52 (1 to 4); 53 (1 to 4); 54 (, 1 to 4); 55 (1 to 4); 56 (1 to 6); 57 (1 to 6); 58 (, 1 to 6); 59 (1 to 6); 61 (1 to 6); 62 (S1, 1 to 6); 63 (1 to 6); 64 (, 1 to 6); 65 (1 to 6); 66 (S1, 1 to 6); 67 (1 to 6); 68 (S1, 1 to 6); 69 (1 to 6); 71 (1, 3 to 6); 72 (S1, 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 : 5 (1 to 4); 6 (, 1 to 6); 7 (S1, 1 to 6); 44 (1 to 4); 45 (1 to 4); 46 (1 to 4); 47 (1 to 4); 48 (1 to 4); 49 (1 to 4); 51 (1 to 4); 52 (1 to 4); 53 (1 to 4); 54 (, 1 to 4); 55 (1 to 4); 56 (1 to 6); 57 (1 to 6); 58 (, 1 to 6); 59 (1 to 6); 61 (1 to 6); 62 (S1, 1 to 6); 63 (1 to 6); 64 (, 1 to 6); 65 (1 to 6); 66 (S1, 1 to 6); 67 (1 to 6); 68 (S1, 1 to 6); 69 (1 to 6); 71 (1, 3 to 6); 72 (S1, 1 to 5)
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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 : 53 (2-4); 54 (s1, 1-4)
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