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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 to 6); 2 (, 1 to 6); 3 (, 1 to 6); 4 (, 1 to 6); 5 (, 1 to 6); 6 (, 1 to 6); 7 (, 1 to 6); 8 (, 1 to 6); 9 (, 1 to 6); 10 (, 1 to 6); 11 (, 1 to 6); 12 (, 1 to 6); 13 (, 1 to 6); 14 (, 1 to 10); 15 (, 1 to 10); 16 (, 1 to 10); 17 (, 1 to 8, 9‐10); 18 (, 1 to 10); 19 (, 1 to 10); 20 (, 1 to 10); 21 (, 1 to 10); 22 (, 1 to 10); 23 (, 1 to 10); 24 (, 1 to 10); 25 (, 1 to 10); 29 (, 1 to 10); 30 (, 1 to 10); 31 (, 1 to 10); 32 (, 1 to 10); 33 (, 1 to 10); 34 (, 1 to 10); 35 (, 1 to 10); 36 (, 1 to 10); 37 (, 1 to 10); 38 (, 1 to 10); 39 (, 1 to 10); 40 (, 1 to 10); 41 (, 1 to 10); 42 (, 1 to 10); 43 (, 1 to 10); 44 (, 1 to 10); 45 (, 1 to 10); 46 (, 1 to 10); 47 (, 1 to 10); 48 (, 1 to 10); 49 (, 1 to 10); 50 (, 1 to 10); 51 (, 1 to 10); 52 (, 1 to 10); 53 (, 1 to 10); 54 (, 1 to 6); 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; 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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1, 16, 20 to 55
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Portico
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Preserved
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2026-02-12
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Preserved : 1972: 1(1-6), 1973: 2(1-6), 1974: 3(1-6), 1975: 4(1-6), 1976: 5(1-6), 1977: 6(1-6), 1978: 7(1-6), 1979: 8(1-6), 1980: 9(1-6), 1981: 10(1-6), 1982: 11(1-6), 1983: 12(1-6), 1984: 13(1-6), 1985: 14(1-10), 1986: 15(1-10), 1987: 16(1-10), 1988: 17(1-10), 1989: 18(1-10), 1990: 19(1-10), 1991: 20(1-10), 1992: 21(1-10), 1993: 22(1-10), 1994: 23(1-10), 1995: 24(1-10), 1996: 25(1-10), 1997: 26(1-10), 1998: 27(1-10), 1999: 28(1-10), 2000: 29(1-10), 2001: 30(1-10), 2002: 31(1-10), 2003: 32(1-10), 2004: 33(1-10), 2005: 34(1-10), 2006: 35(1-10), 2007: 36(1-10), 2008: 37(1-10), 2009: 38(1-10), 2010: 39(1-10), 2011: 40(1-10), 2012: 41(1-10), 2013: 42(1-10), 2014: 43(1-10), 2015: 44(1-10), 2016: 45(1-10), 2017: 46(1-10), 2018: 47(1-10), 2019: 48(1, S1, 2-10), 2020: 49(1-10), 2021: 50(1-10), 2022: 51(1-10), 2023: 52(1-10), 2024: 53(1-10), 2025: 54(1-10), 2026: 55(1)
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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); 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 (S1, 1 to 9); 49 (1 to 9); 51 (1 to 9); 52 (1 to 9); 53 (1 to 3, 5 to 9); 54 (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); 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 (S1, 1 to 9); 49 (1 to 9); 51 (1 to 9); 52 (1 to 9); 53 (1 to 3, 5 to 9); 54 (1 to 7, 9)
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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 : 35 (1-10); 36 (1-10)
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