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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 6); 3 (, 1 to 5); 4 (, 1 to 6); 5 (, 1 to 6); 6 (, 1 to 6); 7 (, 1 to 4); 8 (, 1 to 4); 9 (, 1 to 4); 10 (, 1-2, 3, 4); 11 (, 1 to 4); 12 (, 1 to 4); 13 (, 1 to 4); 14 (, 1 to 4); 15 (, 1 to 4); 16 (, 1 to 4); 17 (, 1 to 4); 18 (, 1 to 4); 19 (, 1 to 4); 20 (, 1 to 4); 21 (, 1 to 4); 22 (, 1 to 4); 23 (, 1 to 4); 24 (, 1 to 4); 25 (, 1 to 4); 26 (, 1 to 4); 27 (, 1 to 4); 28 (, 1 to 4); 29 (, 1 to 4); 30 (, 1 to 4); 31 (, 1 to 4); 32 (, 1 to 4); 36 (, 1 to 4); 37 (, 1 to 4); 38 (, 1 to 4); 39 (, 1 to 4); 40 (, 1 to 4); 41 (, 1 to 4); 42 (, 1 to 4); 43 (, 1 to 4); 44 (, 1 to 4); 45 (, 1 to 4); 46 (, 1 to 4); 47 (, 1 to 4); 48 (, 1 to 4); 49 (, 1 to 4); 50 (, 1 to 4); 51 (, 1 to 4); 52 (, 1 to 4); 53 (, 1 to 4); 54 (, 1, 3, 4); 55 (, 1 to 4); 56 (, 1 to 4); 57 (, 1 to 4); 58 (, 1 to 4); 59 (, 1 to 4); 60 (, 1 to 4); 61 (, 1 to 4); 62 (, 1 to 4); 63 (, 1 to 12); 64 (, 1 to 12); 65 (, 1 to 12); 66 (, 1 to 12); 1980; 1981; 1982; 1983; 1984; 1985; 1986; 1987; 1988; 1989; 1990; 1991; 1992; 1993; 1994; 1995; 1997; 1998; 1999; 2000; 2001; 2002; 2003; 2004; 2005; 2006; 2007; 2008; 2009
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Portico
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Preserved
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2026-02-12
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Preserved : 1986: 6(1-6), 1987: 7(1-4), 1987: 8(1-4), 1988: 9(1-4), 1988: 10(1-4), 1988: 11(1-4), 1989: 12(1-4), 1989: 13(1-4), 1989: 14(1-4), 1990: 15(1-4), 1990: 16(1-4), 1990: 17(1-4), 1991: 18(1-4), 1991: 19(1-4), 1991: 20(1-4), 1992: 21(1-4), 1992: 22(1-4), 1992: 23(1-4), 1993: 24(1-4), 1993: 25(1-4), 1993: 26(1-4), 1994: 27(1-4), 1994: 28(1-4), 1994: 29(1-4), 1995: 30(1-4), 1995: 31(1-4), 1995: 32(1-4), 1996: 33(1-4), 1996: 34(1-4), 1996: 35(1-4), 1997: 36(1-4), 1997: 37(1-4), 1997: 38(1-4), 1998: 39(1-4), 1998: 40(1-4), 1998: 41(1-4), 1999: 42(1-4), 1999: 43(1-4), 1999: 44(1-4), 2000: 45(1-4), 2000: 46(1-4), 2000: 47(1-4), 2001: 48(1-4), 2001: 49(1-4), 2001: 50(1-4), 2002: 51(1-4), 2002: 52(1-4), 2002: 53(1-4), 2003: 54(1-4), 2003: 55(1-4), 2003: 56(1-4), 2004: 57(1-4), 2004: 58(1-4), 2004: 59(1-4), 2005: 60(1-4), 2005: 61(1-4), 2005: 62(1-4), 2006: 63(1-12), 2007: 64(1-12), 2008: 65(1-12), 2009: 66(1-12)
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CLOCKSS Archive
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Preserved
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2026-02-09
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18 to 66
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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 to 4); 5 (1 to 4); 6 (1 to 4); 36 (1 to 4); 37 (1 to 4); 38 (1 to 4); 39 (1 to 4); 41 (1 to 4); 42 (1 to 4); 43 (1 to 4); 44 (1 to 4); 45 (1 to 4); 46 (1 to 4); 47 (1 to 4); 48 (1 to 4); 49 (1 to 4); 51 (1 to 4); 52 (1 to 4); 53 (1 to 4); 54 (1 to 4); 55 (1 to 4); 56 (1 to 4); 57 (1 to 4); 58 (1 to 4); 59 (1 to 4); 61 (1 to 4); 62 (1 to 4); 63 (1 to 9, 11, 12); 64 (1 to 9, 11, 12); 65 (1 to 9, 11, 12); 66 (1 to 9, 11, 12)
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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 to 4); 5 (1 to 4); 6 (1 to 4); 36 (1 to 4); 37 (1 to 4); 38 (1 to 4); 39 (1 to 4); 41 (1 to 4); 42 (1 to 4); 43 (1 to 4); 44 (1 to 4); 45 (1 to 4); 46 (1 to 4); 47 (1 to 4); 48 (1 to 4); 49 (1 to 4); 51 (1 to 4); 52 (1 to 4); 53 (1 to 4); 54 (1 to 4); 55 (1 to 4); 56 (1 to 4); 57 (1 to 4); 58 (1 to 4); 59 (1 to 4); 61 (1 to 4); 62 (1 to 4); 63 (1 to 9, 11, 12); 64 (1 to 9, 11, 12); 65 (1 to 9, 11, 12); 66 (1 to 9, 11, 12)
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