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LOCKSS Archive
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Preserved
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2026-04-13
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1 to 55
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Scholars Portal
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Preserved
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2026-03-19
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Preserved : 42 (1 to 4, 6, 8); 43 (2, 4 to 7); 44 (1 to 3, 7, 8); 45 (1, 2, 4, 7, 8); 46 (1 to 7); 47 (1 to 5); 48 (1, 3, 4); 49 (1 to 3); 50 (1 to 4); 51 (1, 2, 4, 5); 52 (2, 4 to 6); 53 (1, 3, 4, 5part2); 54 (2, 5, 6); 55 (1, 2, 5); 56 (2 to 5); 57 (1, 5, 6); 58 (1 to 5); 59 (1 to 4, 6); 60 (2 to 6); 61 (S1, 3 to 5); 62 (S1, 1 to 3, 5, 6); 63 (S1, 1 to 6); 64 (1 to 6); 65 (S1, 1, 2, 4 to 6, 8, 11, 12); 66 (4, 6, 10 to 12); 67 (1, 3, 9 to 12); 68 (S1, 1, 2, 5 to 7, 9, 12); 69 (5, 6, 8 to 12); 70 (S1, 4, 5)
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Portico
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Preserved
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2026-04-23
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Preserved : 1956: 1(1-4), 1957: 2(1-4), 1958: 3(1-4), 1959: 4(1-4), 1960: 5(1-4), 1961: 6(1-4), 1962: 7(1-4, S), 1963: 8(1-4), 1964: 9(1-4), 1965: 10(1-4, S), 1966: 11(1-4), 1967: 12(1-4), 1968: 13(1-4), 1969: 14(1-6), 1970: 15(1-6), 1971: 16(1-6), 1972: 17(1-6), 1973: 18(1-6), 1974: 19(1-6), 1975: 20(1-6), 1976: 21(1-6), 1977: 22(1-6), 1978: 23(1-6), 1979: 24(1-6), 1980: 25(1-6), 1981: 26(1-6), 1982: 27(1-6), 1983: 28(1-6), 1984: 29(1-6), 1985: 30(1-6), 1986: 31(1-6), 1987: 32(1-6), 1988: 33(1-4, 4, Part 2, 5-6, 6, Part 2), 1989: 34(1-8), 1990: 35(1-8), 1991: 36(1-8), 1992: 37(1-8), 1993: 38(1-8), 1994: 39(1-8), 1995: 40(1-8), 1996: 41(1-8), 1997: 42(1-5, 5, Part 2, 6-8), 1998: 43(1-8), 1999: 44(1-3, 3, Part 2, 4-8), 2000: 45(1-8), 2001: 46(1-8), 2002: 47(1-6), 2003: 48(1, 1, Part 2, 2-6), 2004: 49(1-4, 4, Part 2, 5-6), 2005: 50(1-6), 2006: 51(1, 1, Part 2, 2-6), 2007: 52(1-6), 2008: 53(1-5, 5, Part 2, 6), 2009: 54(1-6, 6, Part 2), 2010: 55(1-6), 2011: 56(1-6), 2012: 57(1-6), 2013: 58(1-6), 2014: 59(1-6), 2015: 60(1-6), 2016: 61(1, S 1, 2-6), 2017: 62(1, S 1, 2-6), 2018: 63(1, S 1, 2-6), 2019: 64(1, S 1, 2-6), 2020: 65(1, S1, 2-12), 2021: 66(1, S1, 2-12), 2022: 67(1, S1, 2, S2, 3-12), 2023: 68(1, S1, 2-12), 2024: 69(1, S1, 2-12), 2025: 70(1, S1, 2, S2, 3-12), 2026: 71(1-3)
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Technische Informationsbibliothek
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Preserved
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2026-01-13
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vol.42:1-8,5part2;vol.43:1-8;vol.44:1-8,3part2;vol.45:1-8;vol.46:1-8;vol.47:1-6;vol.48:1-6,1part2;vol.49:1-6,4part2;vol.50:1-6;vol.51:1-6,1part2;vol.52:1-6;vol.53:1-6,5part2;vol.54:1-6,6part2;vol.55:1-6;vol.56:1-6;vol.57:1-6;vol.58:1-6;vol.59:1-6;vol.60:1-6;vol.61:1-6,S1;vol.62:1-6,S1;vol.63:1-6,S1;vol.64:1-6,S1;vol.65:1-12,sup.S1
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CLOCKSS Archive
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Preserved
|
2026-04-13
|
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1 to 71
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National Digital Preservation Program, China
|
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Preserved
|
2025-10-23
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Preserved : 5 (1 to 6); 6 (1 to 6); 41 (1 to 8); 42 (1 to 8); 43 (1 to 8); 44 (1 to 8); 45 (1 to 8); 46 (1 to 8); 47 (1 to 6); 48 (1 to 6); 49 (1 to 6); 51 (1 to 6); 52 (1 to 6); 53 (1 to 4 to 6); 54 (1 to 6); 55 (1 to 6); 56 (1 to 6); 57 (1 to 6); 58 (1 to 6); 59 (1 to 6); 61 (S1, 1 to 6); 62 (S1, 1 to 6); 63 (S1, 1 to 6); 64 (S1, 1 to 6); 65 (S1, 1 to 9, 11, 12); 66 (S1, 1 to 9, 11, 12); 67 (S1, 1 to 9, 11, 12)
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National Digital Preservation Program, China
|
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Preserved
|
2025-12-04
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Preserved : 5 (1 to 6); 6 (1 to 6); 41 (1 to 8); 42 (1 to 8); 43 (1 to 8); 44 (1 to 8); 45 (1 to 8); 46 (1 to 8); 47 (1 to 6); 48 (1 to 6); 49 (1 to 6); 51 (1 to 6); 52 (1 to 6); 53 (1 to 4 to 6); 54 (1 to 6); 55 (1 to 6); 56 (1 to 6); 57 (1 to 6); 58 (1 to 6); 59 (1 to 6); 61 (S1, 1 to 6); 62 (S1, 1 to 6); 63 (S1, 1 to 6); 64 (S1, 1 to 6); 65 (S1, 1 to 9, 11, 12); 66 (S1, 1 to 9, 11, 12); 67 (S1, 1 to 9, 11, 12)
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