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