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Portico
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Preserved
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2026-02-12
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Preserved : 1960: 1(1-12), 1961: 2(1-12), 1962: 3(1-12), 1963: 4(1-12), 1964: 5(1-12), 1965: 6(1-12), 1966: 7(1-12), 1967: 8(1-12), 1968: 9(1-12), 1969: 10(1-12), 1970: 11(1-12), 1971: 12(1-12), 1972: 13(1-12), 1973: 14(1-12), 1974: 15(1-12), 1975: 16(1-12), 1976: 17(1-12), 1977: 18(1-12), 1978: 19(1-12), 1979: 20(1-12), 1980: 21(1-12), 1981: 22(1-12), 1982: 23(1-12), 1983: 24(1-12), 1984: 25(1-12), 1985: 26(1-12), 1986: 27(1-12), 1987: 28(1-12), 1988: 29(1-12), 1989: 30(1-12), 1990: 31(1-12), 1991: 32(1-12), 1992: 33(1-12), 1993: 34(1-12), 1994: 35(1-12), 1995: 36(1-12)
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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 37 (1-2, 3-4, 4 to 12); 38 (, 1, 2, 3-4, 5-6, 6, 7-8, 9-10, 11-12); 39 (, 1-2, 3-4, 5-6, 7-8, 9-10, 11-12); 40 (, 1-2, 3-4, 5-6, 7-8, 9-10, 11-12); 41 (, 1, 2, 3-4, 5-6, 7-8, 8, 9-10, 11-12); 42 (, 1-2, 3-4, 5-6, 7/8, 9-10, 11-12); 43 (, 1-2, 3-4, 5-6, 7-8, 9-10, 11-12); 44 (, 1 to 6); 45 (, 1 to 6); 46 (, 1 to 6); 47 (, 1 to 6); 48 (, 1 to 6); 49 (, 1 to 6); 50 (, 1 to 6); 51 (, 1 to 6); 52 (, 1 to 6); 53 (, 1 to 6); 54 (, 1 to 6); 55 (, 1 to 6); 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, 2, 4 to 6); 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
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LOCKSS Archive
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In Progress
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2026-02-09
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CLOCKSS Archive
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Preserved
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2026-02-09
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1 to 64
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Portico
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Preserved
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2026-02-12
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Preserved : 1996: 37(1-12), 1997: 38(1-12), 1998: 39(1-12), 1999: 40(1-12), 2000: 41(1-12), 2001: 42(1-12), 2002: 43(1-12), 2003: 44(1-6), 2004: 45(1-6), 2005: 46(1-6), 2006: 47(1-6), 2007: 48(1-6), 2008: 49(1-6), 2009: 50(1-6), 2010/2011: 51(1-6), 2011/2012: 52(1-6), 2012/2013: 53(1-6), 2013/2014: 54(1, 3-6), 2014/2015: 55(1-6), 2015/2016: 56(1-6), 2016/2017: 57(1-6), 2017/2018: 58(1-6), 2018/2019: 59(1-6), 2019/2020: 60(1-6), 2020/2021: 61(1-6), 2021/2022: 62(1-6), 2022/2023: 63(1-2, 4-6), 2023/2024: 64(1-6)
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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 : 41 (9, 11); 42 (1, 3, 5, 7, 9, 11); 43 (1, 3, 5, 7, 9, 11); 44 (1-6); 45 (1-6); 46 (1-6); 47 (1-6); 48 (1-6); 49 (1-6); 50 (1-6); 51 (1-6); 52 (1-6); 53 (1-6); 54 (1-6); 55 (1-6); 56 (1-6); 57 (1-6); 58 (1-6); 59 (1-6); 60 (1)
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Library of Congress
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Preserved
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2025-04-07
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58 (4 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 5)
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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 : 4 (1, 3, 5, 7, 9, 11); 5 (1 to 6); 6 (1 to 6); 38 (1 to 3, 5 to 7, 9, 11); 39 (1, 3, 5, 7, 9, 11); 41 (1 to 3, 5, 7 to 9, 11); 42 (1, 3, 5, 7, 9, 11); 43 (1, 3, 5, 7, 9, 11); 44 (1 to 6); 45 (1 to 6); 46 (1 to 6); 47 (1 to 6); 48 (1 to 6); 49 (1 to 6); 51 (2 to 6); 52 (1 to 6); 53 (1 to 6); 54 (1 to 6); 55 (1 to 6); 56 (1 to 6); 57 (1 to 6); 58 (1 to 6); 59 (1 to 6); 61 (1 to 6); 62 (1 to 6); 63 (1 to 6); 64 (1, 2, 5, 6)
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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 : 4 (1, 3, 5, 7, 9, 11); 5 (1 to 6); 6 (1 to 6); 38 (1 to 3, 5 to 7, 9, 11); 39 (1, 3, 5, 7, 9, 11); 41 (1 to 3, 5, 7 to 9, 11); 42 (1, 3, 5, 7, 9, 11); 43 (1, 3, 5, 7, 9, 11); 44 (1 to 6); 45 (1 to 6); 46 (1 to 6); 47 (1 to 6); 48 (1 to 6); 49 (1 to 6); 51 (2 to 6); 52 (1 to 6); 53 (1 to 6); 54 (1 to 6); 55 (1 to 6); 56 (1 to 6); 57 (1 to 6); 58 (1 to 6); 59 (1 to 6); 61 (1 to 6); 62 (1 to 6); 63 (1 to 6); 64 (1, 2, 5, 6)
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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 (5, 6); 51 (1 to 6); 52 (1)
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National Digital Preservation Program, China
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Preserved
|
2025-12-04
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Preserved : 5 (5, 6); 51 (1 to 6); 52 (1)
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