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Scholars Portal
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Preserved
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2026-03-19
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Preserved : 19 (1 to 10); 20 (1 to 10); 21 (1 to 10); 22 (1 to 10); 23 (1 to 10); 24 (1 to 10); 25 (1 to 10); 26 (1 to 10); 27 (1 to 10); 28 (1 to 10); 29 (1 to 10); 30 (1 to 10); 31 (1 to 10); 32 (1 to 10); 33 (1 to 10); 34 (S1, 1 to 10); 35 (S1, 1 to 10); 36 (S1, 1 to 10); 37 (S1, 1 to 10); 38 (S2, 1 to 10); 39 (1 to 10); 40 (S1, 1 to 10); 41 (S1, 1 to 10); 42 (S1, 1 to 10); 43 (1 to 10); 44 (1 to 10); 45 (1 to 10); 46 (1 to 10); 47 (1 to 6)
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Portico
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Preserved
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2026-04-02
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Preserved : 2020: 42(9)
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LOCKSS Archive
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Preserved
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2026-03-30
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1 to 40
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Technische Informationsbibliothek
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Preserved
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2026-01-13
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vol.19:1-10;vol.20:1-10;vol.21:1-10;vol.22:1-10;vol.23:1-10;vol.24:1-10;vol.25:1-10;vol.26:1-10;vol.27:1-10;vol.28:1-10;vol.29:1-10;vol.30:1-10;vol.31:1-10;vol.32:1-10;vol.33:1-10;vol.34:1-10,sup.S1;vol.35:1-10,sup.S1;vol.36:1-10,sup.S1;vol.37:1-10,sup.S1;vol.38:1-10,sup.S2,sup.S3,sup.S4;vol.39:1-10;vol.40:1-10,sup.S1;vol.41:1-10,sup.S1;vol.42:1-10,sup.S1
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CLOCKSS Archive
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Preserved
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2026-03-30
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1 to 48
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Portico
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Preserved
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2026-04-02
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Preserved : 1979: 1(1-6), 1980: 2(1-6), 1981: 3(1-6), 1982: 4(1-6), 1983: 5(1-6), 1984: 6(1-6), 1985: 7(1-6), 1986: 8(1-6), 1987: 9(1-6), 1988: 10(1-6), 1989: 11(1-6), 1990: 12(1-6), 1991: 13(1-6), 1992: 14(1-6), 1993: 15(1-6), 1994: 16(1-6), 1995: 17(1-10), 1996: 18(1-10), 1997: 19(1-10), 1998: 20(1-10), 1999: 21(1-10), 2000: 22(1-10), 2001: 23(1-10), 2002: 24(1-10), 2003: 25(1-10), 2004: 26(1-10), 2005: 27(1-10), 2006: 28(1-10), 2007: 29(1-10), 2008: 30(1-10), 2009: 31(1-10), 2010: 32(1-10), 2011: 33(1-10), 2012: 34(1, S1, 2-10), 2013: 35(1, S1, 2-10), 2014: 36(1, S1, 2-10), 2015: 37(1, S1, 2-10), 2016: 38(1-2, S2, 3, S3, 4, S4, 5-10), 2017: 39(1-10), 2018: 40(1, S1, 2-10), 2019: 41(1, S1, 2-10), 2020: 42(1, S1, 2-10), 2021: 43(1-10), 2022: 44(1-10), 2023: 45(1-10), 2024: 46(1-10), 2025: 47(1-10), 2026: 48(1-2)
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