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Internet Archive
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Preserved
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2025-08-08
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1 to 29
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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 (S1, 1 to 4); 5 (S1, 1 to 4); 6 (1 to 4); 7 (1 to 4); 8 (S1, 1 to 4); 9 (S1, 1 to 5); 10 (1 to 4); 11 (1 to 6); 12 (1 to 5); 13 (1 to 5); 14 (1 to 5); 15 (1 to 5); 16 (1 to 5); 17 (1 to 5); 18 (1 to 5); 19 (1 to 5); 20 (1 to 5); 21 (1 to 5); 22 (1 to 5); 23 (1 to 5); 24 (1 to 5); 25 (1 to 5); 26 (1 to 5); 27 (1 to 5); 28 (1 to 5); 29 (1 to 5); 30 (1 to 5); 31 (1 to 5); 32 (1 to 3, 4-5); 33 (1 to 5); 34 (1 to 5); 35 (1 to 5); 36 (1 to 5); 37 (1 to 5); 38 (1 to 5); 39 (1 to 3, 4-5); 40 (1 to 5); 41 (1 to 5); 42 (1 to 5); 43 (1 to 5); 44 (1 to 5); 45 (1 to 5); 46 (1)
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CLOCKSS Archive
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Preserved
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2026-04-06
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1 to 46
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Portico
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Preserved
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2026-04-09
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Preserved : 1949/1962: 1(1-4), 1950/1963: 2(1-4), 1951/1964: 3(1-4), 1952: 4(1, S1, 2, S2, 3-4), 1953: 5(1, S1, 2-4), 1954/1967: 6(1-4), 1955/1968: 7(1-4), 1956/1969: 8(1, S1, 2, S2, 3-4), 1957/1970/1989: 9(1, S 1, 2-5), 1971: 10(1-4), 1972/1991: 11(1-6), 1973/1992: 12(1-5), 1974/1993: 13(1-5), 1975/1994: 14(1-5), 1976/1995: 15(1-5), 1977/1996: 16(1-5), 1978/1997: 17(1-5), 1979/1998: 18(1-5), 1980/1999: 19(1-5), 2000: 20(1-5), 2001: 21(1-5), 2002: 22(1-5), 2003: 23(1-5), 2004: 24(1-5), 2005: 25(1-5), 2006: 26(1-5), 2007: 27(1-5), 2008: 28(1-5), 2009: 29(1-5), 2010: 30(1-5), 2011: 31(1-5), 2012: 32(1-5), 2013: 33(1-5), 2014: 34(1-5), 2015: 35(1-5), 2016: 36(1-5), 2017: 37(1-5), 2018: 38(1-5), 2019: 39(1-5), 2020: 40(1-5), 2021: 41(1-5), 2022: 42(1-5), 2023: 43(1-5), 2024: 44(1-5), 2025: 45(1-5), 2026: 46(1)
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Technische Informationsbibliothek
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Preserved
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2026-01-13
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vol.17:1-5;vol.18:1-5;vol.19:1-5;vol.20:1-5;vol.21:1-5;vol.22:1-5;vol.23:1-5;vol.24:1-5;vol.25:1-5;vol.26:1-5;vol.27:1-5;vol.28:1-5;vol.29:1-5;vol.30:1-5;vol.31:1-5;vol.32:1-3,4-5;vol.33:1-5;vol.34:1-5;vol.35:1-5;vol.36:1-5;vol.37:1-5;vol.38:1-5;vol.39:1-3,4-5;vol.40:1-5
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