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Scholars Portal
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Preserved
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2026-03-19
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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); 8 (1 to 4); 9 (1 to 4); 10 (1 to 4); 11 (1 to 4); 12 (1 to 4); 13 (1 to 4); 15 (1 to 3); 16 (1, 2); 17 (1, 2); 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, 2); 31 (3 to 6); 32 (1 to 6); 33 (1 to 3); 35 (1 to 6); 36 (1 to 6); 37 (1 to 6); 38 (1 to 6); 39 (1 to 4, 6)
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Portico
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Preserved
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2026-04-23
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Preserved : 1959: 1(1-4), 1960: 2(1-4), 1961: 3(1-4), 1962: 4(1-4), 1963: 5(1-4), 1964: 6(1-4), 1965: 7(1-4), 1966: 8(1-4), 1967: 9(1-4), 1968: 10(1-4), 1969: 11(1-4), 1970: 12(1-4), 1971: 13(1-4), 1972: 14(1-4), 1973: 15(1-3), 1974: 16(1-2), 1975: 17(1-2), 1976: 18(1-3), 1977: 19(1-3), 1978: 20(1-3), 1979: 21(1-3), 1980: 22(1-3), 1981: 23(1-3), 1982: 24(1-3), 1983: 25(1-3), 1984: 26(1-3), 1985: 27(1-3), 1986: 28(1-3), 1987: 29(1-3), 1988: 30(1-3), 1989/1990: 31(1-6), 1990/1991: 32(1-6), 1991: 33(1-3), 1992: 34(1-6), 1993: 35(1-6), 1994: 36(1-6), 1995: 37(1-6), 1996: 38(1-6), 1997: 39(1-6)
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CLOCKSS Archive
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Preserved
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2026-04-27
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14, 30 to 39
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Technische Informationsbibliothek
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Preserved
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2026-01-13
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vol.39:1-6
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