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Portico
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Preserved
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2026-02-12
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Preserved : 1980: 21(1-4), 1980: 22(1-4), 1980: 23(1-4), 1981: 24(1-4), 1981: 25(1-4), 1981: 26(1-4), 1982: 27(1-4), 1982: 28(1-4), 1982: 29(1-4), 1983: 30(1-4), 1983: 31(1-4), 1983: 32(1-4), 1984: 33(1-4), 1984: 34(1-4), 1984: 35(1-4), 1984: 36(1-4), 1985: 37(1-4), 1985: 38(1-4), 1985: 39(1-4), 1986: 40(1-4), 1986: 41(1-4), 1986: 42(1-4)
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Internet Archive
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Preserved
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2025-08-08
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21 to 42
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CLOCKSS Archive
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Preserved
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2026-02-09
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21 to 42
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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 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); 33 (, 1 to 4); 34 (, 1 to 4); 35 (, 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); 1980; 1981; 1982; 1983; 1984; 1985; 1986
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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 : 21 (1-4); 22 (1-4); 23 (1-4); 24 (1-4); 25 (1-4); 26 (1-4); 27 (1-4); 28 (1-4); 29 (1-4); 30 (1-4); 31 (1-4); 32 (1-4); 33 (1-4); 34 (1-4); 35 (1-4); 36 (1-4); 37 (1-4); 38 (1-4); 39 (1-4); 40 (1-4); 41 (1-4); 42 (1-4)
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