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CLOCKSS Archive
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Preserved
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2026-02-09
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1 to 40
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Portico
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Preserved
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2026-02-12
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Preserved : 1955: 1(1-6), 1955: 2(1-6), 1956: 3(1-6), 1956: 4(1-6), 1957: 5(1-6), 1957: 6(1-6), 1958: 7(1-6), 1958: 8(1-6), 1959: 9(1-6), 1959: 10(1-6), 1960: 11(1-6, Index), 1960: 12(1-6, Index), 1961: 13(1-6), 1961: 14(1-6, ), 1962: 15(1-12, Index), 1963: 16(1-12, Index), 1964: 17(1-12, Index), 1965: 18(1-12, Index), 1966: 19(1-12, Index), 1967: 20(1-12, Index), 1968/1969: 21(1-12, Index), 1969/1970: 22(1-12, Index), 1970/1971: 23(1-12, Index), 1971: 24(1-12, ), 1972: 25(1-12, Index), 1973: 26(1-12, Index), 1974: 27(1-12, Index), 1975: 28(1-12, Index), 1976: 29(1-12, Index), 1977: 30(1-12, Index), 1978: 31(1-12, Index), 1979: 32(1-12, Index), 1980: 33(1-12, ), 1981: 34(1-12, Index), 1982: 35(1-12, ), 1983: 36(1-12, Index), 1984: 37(1-12), 1985: 38(1-12), 1986: 39(1-12, Index), 1987: 40(1, S 1, 2, S 2, 3-12, )
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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 6); 4 (, 1 to 6); 5 (, 1 to 6); 6 (, 1 to 3, 4-5, 6); 7 (, 1, 2-3, 4 to 6); 8 (, 1 to 6); 9 (, 1, 2-3, 4 to 6); 10 (, 1 to 6); 11 (, 1, 2, 3-4, 5, 6); 12 (, 1 to 6); 13 (, 1 to 6); 14 (, 1 to 6); 15 (, 1 to 12); 16 (, 1 to 12); 17 (, 1 to 12); 18 (, 1 to 12); 19 (, 1 to 10, 11-12); 20 (, 1 to 10, 11-12); 21 (, 1 to 8, 9-10, 11-12); 22 (, 1 to 5, 6-7, 8-9, 10 to 12); 23 (, 1 to 4, 5-6, 7 to 9, 10-11, 12); 24 (, 1, 2-3, 4 to 6, 7-8, 9 to 12); 25 (, 1 to 5, 6-7, 8, 9, 10-11, 12); 26 (, 1 to 12); 27 (, 1-2, 3, 4-5, 6, 7-8, 9-10, 11-12); 28 (, 1 to 4, 5-6, 7-8, 9, 10, 11-12); 29 (, 1 to 12); 30 (, 1 to 12); 31 (, 1 to 5, 6-7, 8, 9-10, 11, 12); 32 (, 1-2, 3 to 8, 9-10, 11-12); 33 (, 1 to 10, 11-12); 34 (, 1, 2-3, 4 to 8, 9-10, 11, 12); 35 (, 1 to 12); 36 (, 1 to 12); 37 (, 1 to 8, 9-10, 11, 12); 38 (, 1 to 12); 39 (, 1 to 12); 40 (, 1 to 12); 1955; 1956; 1957; 1958; 1959; 1960; 1961; 1962; 1963; 1964; 1965; 1966; 1967; 1968; 1969; 1970; 1971; 1972; 1973; 1974; 1975; 1976; 1977; 1978; 1979; 1980; 1981; 1982; 1983; 1984; 1985; 1986; 1987
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Internet Archive
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Preserved
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2025-08-08
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1 to 40
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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 (2-6); 2 (1-6); 3 (1-6); 4 (1-6); 5 (1-6); 6 (1-3, 4-5, 6); 7 (1, 2-3, 4-6); 8 (1-6); 9 (1, 2-3, 4-6); 10 (1-3, 5, 6); 11 (1, I, 2, 3-4, 5, 6); 12 (1-6); 13 (1-6); 14 (1-6); 15 (1, I, 2-4, 6-12); 16 (1, I, 2-5, 7-12); 17 (1-12); 18 (1-12); 19 (1, I, 2-10, 11-12); 20 (1, I, 2-10, 11-12); 21 (1-8, 9-10, 11-12); 22 (1-5, 6-7, 8-9, 10-12); 23 (1, I, 2-4, 5-6, 7-9, 10-11, 12); 24 (1, 2-3, 4-6, 7-8, 9-12); 25 (1, I, 2-5, 6-7, 8, 9, 10-11, 12); 26 (1, I, 2-12); 27 (1-2, I, 3, 4-5, 6, 7-8, 9-10, 11-12); 28 (1, I, 2-4, 5-6, 7-8, 9, 11-12); 29 (1, I, 2-12); 30 (1-12); 31 (1, I, 2, 3, 5, 6-7, 8, 9-10, 11, 12); 32 (1-2, 3-7, 9-10, 11-12); 33 (1-10, 11-12); 34 (1, I, 2-3, 4-8, 9-10, 11, 12); 35 (1-12); 36 (1-12); 37 (1-8, 9-10, 11, 12); 38 (1-12); 39 (1-12); 40 (S1, 1-12); 42 (1-2, 3-4); 43 (1)
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