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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 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 6); 21 (, 1 to 6); 22 (, 1 to 5); 23 (, 1 to 6); 24 (, 1 to 6); 25 (, 1 to 6); 26 (, 1 to 6); 27 (, 1 to 6); 28 (, 1 to 6); 29 (, 1); 1979; 1980; 1981; 1982; 1983; 1984; 1985; 1986; 1987; 1988; 1989; 1990; 1991; 1992; 1993; 1994; 1995; 1996; 1997; 1998; 1999; 2000; 2001; 2002; 2003; 2004; 2005; 2006; 2007
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Portico
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Preserved
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2026-02-12
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Preserved : 1979: 1(1-4), 1980: 2(1-4), 1981: 3(1-4), 1982: 4(1-4), 1983: 5(1-4), 1984: 6(1-4), 1985: 7(1-4), 1986: 8(1-4), 1987: 9(1-4), 1988: 10(1-4), 1989: 11(1-4), 1990/1996: 12(1-4), 1991: 13(1-4), 1992: 14(1-4), 1993: 15(1-4), 1994: 16(1-4), 1995: 17(1-4), 1996: 18(1-4), 1997: 19(1-4), 1998: 20(1-4), 1999: 21(1-4), 2000: 22(1-4), 2001: 23(1-4), 2002: 24(1-4), 2003: 25(1-4), 2004: 26(1-4), 2005: 27(1-4), 2006: 28(1-4)
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CLOCKSS Archive
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Preserved
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2026-02-09
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2, 3, 5, 7 to 10, 12 to 28
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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 : 28 (1, 2, 4-6)
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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 : 2 (1 to 6); 19 (1 to 4); 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)
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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 : 2 (1 to 6); 19 (1 to 4); 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)
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