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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); 8 (, 3-4); 9 (, 1 to 4); 10 (, 1-2, 3-4); 11 (, 1-2, 3-4); 12 (, 1-2, 3-4); 13 (, 1-2, 3-4); 14 (, 1-2, 3-4); 15 (, 1-2, 3-4); 16 (, 1-2, 3-4); 17 (, 1-2, 3-4); 18 (, 1-2, 3-4); 19 (, 1, 2, 3-4); 20 (, 1-2, 3-4); 21 (, 1-2, 3-4); 22 (, 1-2, 3-4); 23 (, 1-2, 3-4); 24 (, 1-2, 3-4); 25 (, 1-2, 3-4); 26 (, 1-2, 3-4); 27 (, 1-2, 3, 4); 28 (, 1-2, 3, 4); 29 (, 1, 2-3, 4); 30 (, 1-2, 3-4); 31 (, 1-2, 3-4); 32 (, 1 to 4); 33 (, 1 to 4); 34 (, 1 to 4); 35 (, 1 to 4); 36 (, 1-2, 3-4); 37 (, 1, 2, 3-4); 38 (, 1-2, 3, 4); 39 (, 1-2, 3, 4); 40 (, 1-2, 3, 4); 41 (, 1-2, 3-4); 42 (, 1, 2, 3-4); 43 (, 1, 2-3, 4); 44 (, 1-2, 3-4); 45 (, 1-2, 3, 4); 46 (, 1, 2, 3-4); 47 (, 1-2, 3-4); 48 (, 1-2, 3-4); 49 (, 1-2, 3, 4); 50 (, 1-2, 3-4); 51 (, 1-2, 3-4); 52 (, 1 to 8); 53 (, 1 to 8); 54 (, 1 to 8); 55 (, 1, 2, 7, 8); 56 (, 1 to 8); 57 (, 1, 2-4, 5, 6-7, 8); 58 (, 1 to 6, 7-8); 59 (, 2 to 6, 7-8); 60 (, 1 to 5, 6-7, 8); 61 (, 1 to 8); 62 (, 1 to 8); 63 (, 1-2, 3 to 5, 6-7, 8); 64 (, 1 to 8); 65 (, 1 to 8); 66 (, 1 to 8); 67 (, 1 to 8); 68 (, 1 to 6); 1979; 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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45 to 55
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Portico
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Preserved
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2026-02-12
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Preserved : 2006: 46(3-4), 2006: 47(1-4), 2006: 48(1-2), 2007: 50(1-2)
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CLOCKSS Archive
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Preserved
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2026-02-09
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ahead-of-print to 68
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LOCKSS Archive
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Preserved
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2026-02-09
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1 to 67
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LOCKSS Archive
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In Progress
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2026-02-09
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68
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Portico
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Preserved
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2026-02-12
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Preserved : 1985/1986/1987: 9(1-4), 1987: 10(1-4), 1987: 11(1-4), 1988: 12(1-4), 1988/1989: 13(1-4), 1989/1990: 14(1-4), 1990: 15(1-4), 1991: 16(1-4), 1991: 17(1-4), 1992: 18(1-4), 1992: 19(1-4), 1993/1994: 20(1-4), 1994: 21(1-4), 1994/1995: 22(1-4), 1995: 23(1-4), 1995: 24(1-4), 1996: 25(1-4), 1996/1997: 26(1-4), 1997: 27(1-4), 1997: 28(1-4), 1998: 29(1-4), 1998/1999: 30(1-4), 1999: 31(1-4), 1999/2000: 32(1-4), 2000: 33(1-4), 2000/2001: 34(1-4), 2001/2002: 35(1-4), 2002: 36(1-4), 2002: 37(1-4), 2003: 38(1-4), 2003: 39(1-4), 2003/2004: 40(1-4), 2004: 41(1-4), 2004: 42(1-4), 2004/2005: 43(1-4), 2005: 44(1-4), 2005: 45(1-4), 2005/2006: 46(1-4), 2006: 47(1-4), 2006: 48(1-4), 2007: 49(1-4), 2007/2008: 50(1-4), 2008: 51(1-4), 2008/2009: 52(1-8), 2010: 53(1-8), 2011: 54(1-8), 2012: 55(1-8), 2013: 56(1-8), 2014: 57(1-8), 2015: 58(1-8), 2016: 59(1-8), 2017: 60(1-8), 2018: 61(1-8), 2019: 62(1-8), 2020: 63(1-8), 2021: 64(1-8), 2022: 65(1-8), 2023: 66(1-8), 2024: 67(1-8), 2025: 68(1-8), 2026: 69(1-2)
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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 (1-2, 3-4); 4 (1-2, 3, 4); 5 (sup1, 1-2, 3-4); 6 (1 to 5, 6-7, 8); 26 (3-4); 27 (1-2, 3, 4); 28 (1-2, 3, 4); 29 (1, 2-3, 4); 31 (1-2, 3-4); 32 (1 to 4); 33 (1 to 4); 34 (1 to 4); 35 (1 to 4); 36 (1-2, 3-4); 37 (1, 2, 3-4); 38 (1-2, 3, 4); 39 (1-2, 3, 4); 41 (1-2, 3-4); 42 (1, 2, 3-4); 43 (1, 2-3, 4); 44 (1-2, 3-4); 45 (1-2, 3, 4); 46 (1, 2, 3-4); 47 (1-2, 3-4); 48 (1-2, 3-4); 49 (1-2, 3, 4); 51 (1-2, 3-4); 52 (1 to 8); 53 (1 to 8); 54 (1 to 8); 55 (1 to 8); 56 (1 to 8); 57 (1, 2-4, 5, 6-7, 8); 58 (1 to 6, 7-8); 59 (1 to 6, 7-8); 61 (1 to 8); 62 (1 to 8); 63 (1-2, 3 to 5, 6-7, 8); 64 (1 to 8); 65 (1 to 8); 66 (1 to 8); 67 (1 to 8); 68 (1, 2, 4)
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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 : 1 (1-4); 2 (1-4); 3 (1-4); 4 (1, 2, 3-4); 5 (1-2, 3, 4); 6 (1, 2-3, 4); 7 (1-2, 3, 4); 8 (1-2, 3-4); 9 (1, 2); 10 (1-2, 3-4); 11 (1-2, 3-4); 12 (1-2, 3-4); 13 (1-2, 3-4); 14 (1-2, 3-4); 15 (1-2, 3-4); 16 (1-2, 3-4); 17 (1-2, 3-4); 18 (1-2, 3-4); 19 (1, 2, 3-4); 20 (1-2, 3-4); 21 (1-2, 3-4); 22 (1-2, 3-4); 23 (1-2, 3-4); 24 (1-2, 3-4); 25 (1-2, 3-4); 26 (1-2, 3-4); 27 (1-2, 3, 4); 28 (1-2, 3, 4); 29 (1, 2-3, 4); 30 (1-2, 3-4); 31 (1-2, 3-4); 32 (1-4); 33 (1, 2, 4); 34 (1-4); 35 (1-3); 36 (1-2, 3-4); 37 (1, 2, 3-4); 38 (1-2, 3); 39 (1-2, 3, 4); 40 (1-2, 3, 4); 41 (1-2, 3-4); 42 (1, 2, 3-4); 43 (1, 2-3); 44 (1-2, 3-4); 45 (1-2, 3, 4); 46 (1, 2, 3-4); 47 (1-2, 3-4); 48 (1-2, 3-4); 49 (1-2, 4); 50 (1-2, 3-4); 51 (1-2, 3-4)
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Library of Congress
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Preserved
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2025-04-07
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57 (2-4); 60 (2 to 6-7, 8); 61 (1 to 8); 62 (1 to 8); 63 (1-2, 3 to 6-7, 8); 64 (2 to 8); 65 (1 to 8); 66 (1 to 8); 67 (1 to 8); 68 (1)
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