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Portico
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Preserved
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2026-02-12
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Preserved : 1967: 1(1-3), 1968/1969: 2(1-6), 1969/1970: 3(1-6), 1970: 4(1-6), 1971: 5(1-6), 1972: 6(1-6), 1973: 7(1-3), 1973: 8(1-3), 1974: 9(1-4), 1974: 10(1-4), 1974: 11(1-4), 1975: 12(1-4), 1975: 13(1-4), 1975: 14(1-4), 1976: 15(1-3), 1976: 16(1-3), 1977: 17(1-3), 1977: 18(1-3), 1978: 19(1-3), 1978: 20(1-3), 1979: 21(1-3), 1979: 22(1-3), 1980: 23(1-3), 1980: 24(1-3), 1981: 25(1-3), 1981: 26(1-3), 1982: 27(1-3), 1982: 28(1-3), 1983: 29(1-3), 1983: 30(1-3), 1984: 31(1-3), 1984: 32(1-3), 1985: 33(1-3), 1985: 34(1-3)
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CLOCKSS Archive
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Preserved
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2026-02-09
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1 to 34
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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 3); 2 (, 1 to 6); 3 (, 1 to 6); 4 (, 1, 2, 3-4, 5-6); 5 (, 1 to 6); 6 (, 1 to 6); 7 (, 1 to 3); 8 (, 1 to 3); 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 3); 16 (, 1 to 3); 17 (, 1 to 3); 18 (, 1 to 3); 19 (, 1 to 3); 20 (, 1 to 3); 21 (, 1 to 3); 22 (, 1 to 3); 23 (, 1 to 3); 24 (, 1 to 3); 25 (, 1 to 3); 26 (, 1 to 3); 27 (, 1 to 3); 28 (, 1 to 3); 29 (, 1 to 3); 30 (, 1 to 3); 31 (, 1 to 3); 32 (, 1 to 3); 33 (, 1 to 3); 34 (, 1 to 3); 1967; 1968; 1969; 1970; 1971; 1972; 1973; 1974; 1975; 1976; 1977; 1978; 1979; 1980; 1981; 1982; 1983; 1984; 1985
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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 (1-3); 2 (1-6); 3 (1-6); 4 (1, 2, 3-4, 5-6); 5 (1-6); 6 (1-6); 7 (1-3); 8 (1-3); 9 (1-4); 10 (1-4); 11 (1-4); 12 (1-4); 13 (1-4); 14 (1-4); 15 (1-3); 16 (1-3); 17 (1-3); 18 (1-3); 19 (1-3); 20 (1-3); 21 (1-3); 22 (1-3); 23 (1-3); 24 (1-3); 25 (1-3); 26 (1-3); 27 (1-3); 28 (1-3); 29 (1-3); 30 (1-3); 31 (1-3); 32 (1-4); 33 (1-4); 34 (1-4); 35 (1-3); 36 (4); 37 (1-4)
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