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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 7, 8‐9, 10, 11‐12); 7 (, 1 to 5, 6‐7, 8‐9, 10 to 12); 8 (, 1 to 12); 9 (, 1 to 12); 10 (, 1 to 12); 11 (, 1 to 12); 12 (, 1 to 12); 13 (, 1 to 12); 14 (, 1 to 12); 15 (, 1 to 12); 16 (, 1 to 12); 17 (, 1 to 12); 18 (, 1 to 6); 19 (, 1 to 6); 20 (, 1 to 6); 21 (, 1 to 6); 22 (, 1 to 6); 23 (, 1 to 6); 1948; 1949; 1950; 1951; 1952; 1953; 1954; 1955; 1956; 1957; 1958; 1959; 1960; 1961; 1962; 1963; 1964; 1965; 1966; 1967
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CLOCKSS Archive
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Preserved
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2026-02-09
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1 to 23
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Portico
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Preserved
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2026-02-12
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Preserved : 1948: 1(1-6), 1949: 2(1-6), 1950: 3(1-6), 1951: 4(1-6), 1952: 5(1-6), 1953: 6(1-12), 1954: 7(1-12), 1955: 8(1-12), 1956: 9(1-12), 1957: 10(1-12), 1958: 11(1-12), 1959: 12(1-12), 1960: 13(1-12), 1961: 14(1-12), 1962: 15(1-12), 1963: 16(1-12), 1964: 17(1-12), 1965: 18(1-6), 1965: 19(1-6), 1966: 20(1-6), 1966: 21(1-6), 1967: 22(1-6), 1967: 23(1-6)
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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 (1-6); 2 (1-6); 3 (1-6); 4 (1-6); 5 (1-6); 6 (1-7, 8-9, 10, 11-12); 7 (1-5, 6-7, 8-9, 10-12); 8 (1-12); 9 (1-12); 10 (1-12); 11 (1-12); 12 (1-12); 13 (1-12); 14 (1-6); 15 (4, 9, 10); 16 (5-12); 17 (1-12); 18 (1-6); 19 (1-6); 20 (1-6); 21 (1-6); 22 (1-6); 23 (1-6)
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