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CLOCKSS Archive
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In Progress
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2026-02-09
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2023
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LOCKSS Archive
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Preserved
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2026-02-09
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2023
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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 4); 2 (, 1 to 4); 3 (, 1 to 4); 4 (, 1 to 4); 5 (, 1 to 4); 6 (, 1 to 4); 7 (, 1 to 4); 8 (, 1 to 4); 9 (, 1 to 4); 10 (, 1 to 6); 11 (, 1 to 6); 12 (, 1 to 6); 13 (, 1 to 6); 14 (, 1 to 6); 15 (, 1 to 6); 16 (, 1 to 6); 17 (, 1 to 6); 18 (, 1 to 6); 19 (, 1 to 6); 20 (, 1 to 6); 21 (, 1 to 6); 22 (, 1 to 6); 23 (, 1 to 6); 24 (, 1 to 6); 25 (, 1 to 6); 26 (, 1 to 6); 27 (, 1 to 6); 28 (, 1 to 6); 31 (, 1 to 6); 32 (, 1 to 3, 4-5, 6); 33 (, 1 to 6); 34 (, 1 to 6); 35 (, 1 to 6); 36 (, 1 to 6); 37 (, 1, 2-3, 4 to 6); 38 (, 1 to 6); 39 (, 1 to 6); 40 (, 1 to 6); 41 (, 1 to 6); 42 (, 1 to 6); 43 (, 1 to 6); 44 (, 1 to 6); 45 (, 1 to 6); 46 (, 1 to 10); 47 (, 1 to 10); 48 (, 1 to 10); 49 (, 1 to 10); 50 (, 1 to 11); 51 (, 1 to 11); 52 (, 1 to 11); 53 (, 1 to 6, 8 to 11); 54 (, 1 to 11); 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; 1999; 2000; 2001; 2002; 2003; 2004; 2005; 2006; 2007; 2008; 2009; 2010; 2011; 2012; 2013; 2014; 2015; 2016; 2017; 2018; 2019; 2020; 2021; 2022
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Portico
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Preserved
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2026-02-12
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Preserved : 2023: 2023, 2024: 2024, 2025: 2025, 2026: 2026
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Portico
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Preserved
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2026-02-12
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Preserved : 1969: 1(1-4), 1970: 2(1-4), 1971: 3(1-4), 1972: 4(1-4), 1973: 5(1-4), 1974: 6(1-4), 1975: 7(1-4), 1976: 8(1-4), 1977: 9(1-4), 1978: 10(1-6), 1979: 11(1-6), 1980: 12(1-6), 1981: 13(1-6), 1982: 14(1-6), 1983: 15(1, S 1, 2-6), 1984: 16(1-6), 1985: 17(1-6), 1986: 18(1-6), 1987: 19(1, S 1, 2-6), 1988: 20(1-6), 1988/1989: 21(1, S 1, 2-6), 1990: 22(1, S 1, 2-6), 1991: 23(1-6), 1992: 24(1, S 1, 2-6), 1993: 25(1-6), 1994: 26(1-6), 1995: 27(1-6), 1996: 28(1-6), 1997: 29(1-6), 1998: 30(1-3, 6), 1999: 31(1-6), 2000: 32(1-3, 6), 2001: 33(1-6), 2002: 34(1-6), 2003: 35(1-6), 2004: 36(1-6), 2005: 37(1, 4-6), 2006: 38(1-6), 2007: 39(1-6), 2008: 40(1-6), 2009: 41(1-6), 2010: 42(1-6), 2011: 43(1-6), 2012: 44(1-6), 2013: 45(1-6), 2014: 46(1-10), 2015: 47(1-10), 2016: 48(1-10), 2017: 49(1-10), 2018: 50(1-11), 2019: 51(1-11), 2020: 52(1-11), 2021: 53(1-11), 2022: 54(1-11), 2023: 2023(1), 2024: 2024(1), 2025: 2025(1), 2026: 2026(1)
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CLOCKSS Archive
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Preserved
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2026-02-09
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23 to 54
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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 : 38 (1-6); 39 (1-6); 115 (4)
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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 (S1, 1 to 3, 4?5, 6); 4 (1 to 6); 5 (1 to 9, 11); 29 (1 to 6); 31 (S1, 1 to 6); 32 (1 to 3, 4?5, 6); 33 (1 to 6); 34 (1 to 6); 35 (1 to 6); 36 (1 to 6); 37 (1, 2?3, 4 to 6); 38 (1 to 6); 39 (1 to 6); 41 (1 to 6); 42 (1 to 6); 43 (1 to 6); 44 (, 1 to 6); 45 (1 to 6); 46 (1 to 9); 47 (1 to 9); 48 (1 to 9); 49 (1 to 9); 51 (1 to 9, 11); 52 (1 to 9, 11); 53 (1 to 9, 11); 54 (1 to 9, 11)
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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 (S1, 1 to 3, 4?5, 6); 4 (1 to 6); 5 (1 to 9, 11); 29 (1 to 6); 31 (S1, 1 to 6); 32 (1 to 3, 4?5, 6); 33 (1 to 6); 34 (1 to 6); 35 (1 to 6); 36 (1 to 6); 37 (1, 2?3, 4 to 6); 38 (1 to 6); 39 (1 to 6); 41 (1 to 6); 42 (1 to 6); 43 (1 to 6); 44 (, 1 to 6); 45 (1 to 6); 46 (1 to 9); 47 (1 to 9); 48 (1 to 9); 49 (1 to 9); 51 (1 to 9, 11); 52 (1 to 9, 11); 53 (1 to 9, 11); 54 (1 to 9, 11)
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