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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 6); 2 (, 1 to 6); 3 (, 1 to 4, 5-6); 4 (, 1 to 6); 5 (, 1 to 6); 6 (, 1 to 6); 7 (, 1 to 6); 9 (, 1 to 6); 10 (, 1 to 6); 11 (, 1 to 6); 12 (, 1 to 6); 13 (, 1 to 6); 14 (, 1 to 6); 15 (, 1 to 6); 16 (, 2 to 6); 17 (, 1 to 6); 18 (, 1 to 6); 19 (, 1 to 6); 20 (, 1 to 6); 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 7); 29 (, 1, 6-7); 30 (, 1, 2-3, 4, 5-6); 31 (, 1 to 3, 4-5, 6); 32 (, 1 to 3, 4-5, 6); 33 (, 1 to 6); 34 (, 1-2, 3 to 6); 1973; 1974; 1975; 1976; 1977; 1978; 1979; 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
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Portico
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Preserved
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2026-02-12
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Preserved : 1973: 1(1-6), 1974: 2(1-6), 1975: 3(1-6), 1976: 4(1-6), 1977: 5(1-6), 1978: 6(1-6), 1979: 7(1-6), 1980: 8(1-6), 1981: 9(1-6), 1982: 10(1-6), 1983: 11(1-6), 1984: 12(1-6), 1985: 13(1-6), 1986: 14(1-6), 1987: 15(1-6), 1988: 16(2-6), 1989: 17(1-6), 1990: 18(1-6), 1991: 19(1-6), 1992: 20(1-6), 1993: 21(1-6), 1994: 22(1-6), 1995: 23(1-6), 1996: 24(1-6), 1997: 25(1-6), 1998: 26(1-6), 1999: 27(1-6), 2000/2001: 28(1-7), 2001: 29(1-7), 2002: 30(1-6), 2003: 31(1-6), 2004: 32(1-6), 2005: 33(1-6), 2006: 34(1-6)
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CLOCKSS Archive
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Preserved
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2026-02-09
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8, 19 to 30, 32 to 34
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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 : 3 (1, 2?3, 4, 5?6); 25 (1 to 6); 26 (1 to 6); 27 (1 to 6); 28 (1 to 7); 29 (1, 2?3, 4, 5, 6?7); 31 (1 to 3, 4?5, 6); 32 (1 to 3, 4?5, 6); 33 (1 to 6); 34 (1?2, 3 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 : 3 (1, 2?3, 4, 5?6); 25 (1 to 6); 26 (1 to 6); 27 (1 to 6); 28 (1 to 7); 29 (1, 2?3, 4, 5, 6?7); 31 (1 to 3, 4?5, 6); 32 (1 to 3, 4?5, 6); 33 (1 to 6); 34 (1?2, 3 to 6)
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