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Portico
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Preserved
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2026-02-12
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Preserved : 1950/1951/1952: 1(1-4), 1954/1956: 2(1-4), 1957: 3(1-4), 1958: 4(1-4), 1960/1961: 5(1-4), 1962/1964: 6(1-4), 1964/1965: 7(1-4), 1965: 8(1-4), 1966: 9(1-4), 1967/1968: 10(1-4), 1968: 11(1-4), 1969: 12(1-4), 1970: 13(1-4), 1971: 14(1-4), 1972: 15(1-4), 1974: 16(1-4), 1975: 17(1-4), 1977: 18(1), 1978: 19(1), 1980: 20(1-4), 1981: 21(1), 1980: 22(1-4), 1983: 23(1), 1984: 24(1), 1985: 25(1), 1987: 26(1)
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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 27 (1, 2); 28 (, 1 to 3); 29 (, 1 to 4); 30 (, 1 to 4, 5-6); 31 (, 1 to 6); 32 (, 1 to 6); 33 (, 1 to 6); 34 (, 1 to 6); 35 (, 1 to 4, 5-6); 36 (, 1 to 3, 4/5, 6); 37 (, 1 to 4, 5/6, 7, 8); 38 (, 1 to 3, 4-5, 6 to 8); 39 (, 1 to 8); 40 (, 1 to 8); 41 (, 1 to 8); 42 (, 1 to 8); 43 (, 1 to 8); 44 (, 1 to 8); 45 (, 1 to 8); 46 (, 1, 2, 3-4, 5-6, 7-8); 47 (, 1 to 6, 7-8); 48 (, 1, 2, 3-4, 5 to 8); 49 (, 1 to 6, 7-8); 50 (, 1-2, 3-4, 5-6, 7-8); 51 (, 1-2, 3-4, 5-6, 7-8); 52 (, 1-2, 3-4, 5-6, 7-8); 53 (, 1-2, 3-4, 5-6, 7-8); 54 (, 1-2, 3-4, 5-6, 7-8); 55 (, 1-2, 3-4, 5-6, 7-8); 56 (, 1-2, 3-4, 5-6, 7-8); 57 (, 1-2, 3-4, 5-6, 7-8); 58 (, 7-8); 59 (, 1-2, 3-4, 5-6, 7-8); 60 (, 1-2, 3-4, 5, 6, 7-8); 61 (, 1-2, 3-4, 5-6, 7-8); 62 (, 1-2, 3-4, 5-6, 7-8); 63 (, 1-2, 3-4, 5-6, 7-8); 64 (, 1, 3, 5); 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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20 to 44
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CLOCKSS Archive
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Preserved
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2026-02-09
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1 to 65
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Portico
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Preserved
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2026-02-12
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Preserved : 1988: 27(1-2), 1989: 28(1-3), 1989/1990: 29(1-4), 1990/1991: 30(1-6), 1991/1992: 31(1-6), 1992/1993: 32(1-6), 1994/1995: 33(1-6), 1995: 34(1-6), 1996: 35(1-6), 1996/1997: 36(1-6), 1997/1998: 37(1-8), 1999: 38(1-8), 2000: 39(1-8), 2001: 40(1-8), 2002: 41(1-8), 2003: 42(1-8), 2004: 43(1-8), 2005: 44(1-8), 2006: 45(1-8), 2007/2008: 46(1-8), 2008: 47(1-8), 2009: 48(1-8), 2010: 49(1-8), 2011: 50(1-8), 2012: 51(1-6), 2013: 52(1-6), 2014: 53(1-8), 2015: 54(1-8), 2016: 55(1-8), 2017: 56(1-8), 2018: 57(1-8), 2019: 58(1-8), 2019/2020: 59(1-8), 2021: 60(1-8), 2022: 61(1-8), 2023: 62(1-8), 2024: 63(1-8), 2025: 64(1, 3, 5-8), 2026: 65(1-2)
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LOCKSS Archive
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In Progress
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2026-02-09
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51, 58
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LOCKSS Archive
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Preserved
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2026-02-09
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52 to 57
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Library of Congress
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Preserved
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2025-04-07
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57 (3-4, 5-6, 7-8); 58 (1-2, 3-4, 5-6, 7-8); 59 (1-2, 3-4, 5-6, 7-8); 60 (1-2, 3-4, 5 to 7-8); 61 (1-2, 3-4, 5-6, 7-8); 62 (1-2, 3-4, 5-6, 7-8); 63 (1-2, 3-4, 5-6, 7-8)
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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 (2 to 8); 5 (1, 3, 5, 7); 6 (1-2, 3-4, 5, 6, 7-8); 36 (2 to 4, 6); 37 (1 to 5, 7, 8); 38 (1 to 4, 6 to 8); 39 (1 to 8); 41 (1 to 8); 42 (1 to 8); 43 (1 to 8); 44 (1 to 8); 45 (1 to 8); 46 (1 to 3, 5, 7); 47 (1 to 7); 48 (1 to 3, 5 to 8); 49 (1 to 7); 51 (1, 3, 5, 7); 52 (1, 3, 5, 7); 53 (1, 3, 5, 7); 54 (1, 3, 5, 7); 55 (1, 5, 7); 56 (1, 3, 5, 7); 57 (1-2, 3-4, 5-6, 7-8); 58 (1-2, 3-4, 5-6, 7-8); 59 (1-2, 3-4, 5-6, 7-8); 61 (1-2, 3-4, 5-6, 7-8); 62 (1-2, 3-4, 5-6, 7-8); 63 (1, 3, 5, 7)
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National Digital Preservation Program, China
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Preserved
|
2025-12-04
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Preserved : 4 (2 to 8); 5 (1, 3, 5, 7); 6 (1-2, 3-4, 5, 6, 7-8); 36 (2 to 4, 6); 37 (1 to 5, 7, 8); 38 (1 to 4, 6 to 8); 39 (1 to 8); 41 (1 to 8); 42 (1 to 8); 43 (1 to 8); 44 (1 to 8); 45 (1 to 8); 46 (1 to 3, 5, 7); 47 (1 to 7); 48 (1 to 3, 5 to 8); 49 (1 to 7); 51 (1, 3, 5, 7); 52 (1, 3, 5, 7); 53 (1, 3, 5, 7); 54 (1, 3, 5, 7); 55 (1, 5, 7); 56 (1, 3, 5, 7); 57 (1-2, 3-4, 5-6, 7-8); 58 (1-2, 3-4, 5-6, 7-8); 59 (1-2, 3-4, 5-6, 7-8); 61 (1-2, 3-4, 5-6, 7-8); 62 (1-2, 3-4, 5-6, 7-8); 63 (1, 3, 5, 7)
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National Library of the Netherlands
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Preserved
|
2024-12-15
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Preserved : 35; 36 (1-3, 4-5, 6); 37 (1-4, 5-6, 7, 8); 38 (1-3, 4-5, 6-8); 39 (1-8); 40 (1-8); 41 (1-8); 42 (1-8); 43 (1-8); 44 (1-8); 45 (1-5, 7, 8); 46 (1, 2, 3-4, 5-6, 7-8); 47 (1-6, 7-8); 48 (1, 2, 3-4, 5-8); 49 (1-6, 7-8); 50 (1-2, 3-4, 5-6, 7-8); 51 (1-2, 3-4, 5-6, 7-8); 52 (1-2, 3-4, 5-6, 7-8); 53 (1-2, 3-4, 5-6, 7-8); 54 (1-2, 3-4, 5-6, 7-8); 55 (1-2, 3-4, 5-6, 7-8); 56 (1-2, 3-4, 5-6, 7-8); 57 (1-2, 3-4, 5-6, 7-8); 58 (1-2, 3-4, 5-6, 7-8)
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