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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, 4); 2 (, 1 to 4); 3 (, 1 to 4); 4 (, 1 to 6); 5 (, 1 to 6); 6 (, 1 to 6); 7 (, 1 to 6); 8 (, 1 to 6); 9 (, 1 to 9); 10 (, 1 to 9); 11 (, 1 to 9); 12 (, 1 to 9); 13 (, 1 to 9); 14 (, 1 to 9); 15 (, 1 to 9); 16 (, 1 to 9); 17 (, 1 to 9); 18 (, 1 to 9); 19 (, 1 to 9); 20 (, 1 to 9); 21 (, 1 to 9); 22 (, 1 to 9); 23 (, 1 to 9); 24 (, 1 to 9); 25 (, 1 to 9); 26 (, 1 to 9); 27 (, 1 to 9); 28 (, 1 to 9); 29 (, 1 to 9); 30 (, 1 to 9); 31 (, 1 to 9); 32 (, 1 to 9); 33 (, 1 to 9); 34 (, 1 to 9); 35 (, 1 to 9); 36 (, 1 to 9); 37 (, 1 to 4, 6 to 9); 38 (, 1 to 9); 39 (, 1 to 9); 40 (, 1, 2, 5 to 9); 41 (, 1 to 9); 42 (, 1 to 9); 43 (, 1 to 9); 44 (, 1 to 9); 45 (, 1 to 9); 46 (, 1 to 9); 47 (, 1 to 9); 48 (, 1 to 9); 49 (, 1 to 9); 50 (, 1 to 9); 51 (, 1 to 9); 52 (, 1 to 9); 53 (, 1 to 5); 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 42
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Portico
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Preserved
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2026-02-12
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Preserved : 1973: 1(1, 4), 1974: 2(1-4), 1975: 3(1-4), 1976: 4(1-6), 1977: 5(1-6), 1978: 6(1-6), 1979: 7(1-6), 1980: 8(1-6), 1981: 9(1-9), 1982: 10(1-9), 1983: 11(1-9), 1984: 12(1-9), 1985: 13(1-9), 1986: 14(1-9), 1987: 15(1-9), 1988: 16(1-9), 1989: 17(1-9), 1990: 18(1-9), 1991: 19(1-9), 1992: 20(1-9), 1993: 21(1-9), 1994: 22(1-9), 1995: 23(1-9), 1996: 24(1-9), 1997: 25(1-9), 1998: 26(1-9), 1999: 27(1-9), 2000: 28(1-9), 2001: 29(1-9), 2002: 30(1-9), 2003: 31(1-9), 2004: 32(1-9), 2005: 33(1-9), 2006: 34(1-9), 2007: 35(1-9), 2008: 36(1-9), 2009: 37(1-9), 2010: 38(1-9), 2011: 39(1-9), 2012: 40(1-9), 2013: 41(1, S 1, 2-9), 2014: 42(1-9), 2015: 43(1-9), 2016: 44(1-9), 2017: 45(1-9), 2018: 46(1-9), 2019: 47(1-9), 2020: 48(1-9), 2021: 49(1-9), 2022: 50(1-9), 2023: 51(1-9), 2024: 52(1-9), 2025: 53(1-9), 2026: 54(1-2)
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CLOCKSS Archive
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Preserved
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2026-02-09
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13, 18 to 54
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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 9); 4 (1 to 9); 5 (1 to 9); 24 (1 to 9); 25 (1 to 9); 26 (1 to 9); 27 (1 to 9); 28 (1 to 9); 29 (1 to 9); 31 (1 to 9); 32 (1 to 9); 33 (1 to 9); 34 (1 to 9); 35 (1 to 9); 36 (1 to 9); 37 (1 to 9); 38 (1 to 9); 39 (1 to 9); 41 (, 1 to 9); 42 (1 to 9); 43 (1 to 9); 44 (1 to 9); 45 (1 to 9); 46 (1 to 9); 47 (1 to 9); 48 (1 to 9); 49 (1 to 9); 51 (1 to 9); 52 (1 to 9); 53 (1 to 7)
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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 9); 4 (1 to 9); 5 (1 to 9); 24 (1 to 9); 25 (1 to 9); 26 (1 to 9); 27 (1 to 9); 28 (1 to 9); 29 (1 to 9); 31 (1 to 9); 32 (1 to 9); 33 (1 to 9); 34 (1 to 9); 35 (1 to 9); 36 (1 to 9); 37 (1 to 9); 38 (1 to 9); 39 (1 to 9); 41 (, 1 to 9); 42 (1 to 9); 43 (1 to 9); 44 (1 to 9); 45 (1 to 9); 46 (1 to 9); 47 (1 to 9); 48 (1 to 9); 49 (1 to 9); 51 (1 to 9); 52 (1 to 9); 53 (1 to 8)
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