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Scholars Portal
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Preserved
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2026-03-19
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Preserved : 24 (2, 3); 25 (1, 2); 26 (1 to 3); 27 (1 to 3); 28 (1 to 3); 29 (1 to 3); 30 (1 to 3); 31 (1 to 3); 32 (1 to 3); 33 (1 to 3); 34 (1, 2-3); 35 (1 to 3); 36 (1 to 3); 37 (1 to 3)
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Internet Archive
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Preserved
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2025-08-08
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3 to 6
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LOCKSS Archive
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Preserved
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2026-05-18
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1 to 19
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Portico
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Preserved
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2026-05-14
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Preserved : 2002: 14(2)
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Portico
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Preserved
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2026-05-14
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Preserved : 2006: 18(2), 2007: 19(1-2)
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Technische Informationsbibliothek
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Preserved
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2026-01-13
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vol.10:1;vol.11:1-2;vol.12:1-2;vol.13:1-2;vol.14:1-2;vol.15:1-2;vol.16:1-2;vol.17:1-2;vol.18:1-2;vol.19:1-2;vol.20:1-2;vol.21:1-2;vol.22:1-2;vol.23:1-2,sup.s1;vol.24:1-3;vol.25:1-3;vol.26:1-3;vol.27:1-3;vol.28:1-3;vol.29:1-3;vol.30:1-3;vol.31:1-3;vol.32:1-3;vol.9:1
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Portico
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Preserved
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2026-05-14
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Preserved : 1987: 1(1-2), 1988: 2(1-2), 1989: 3(1-2), 1990: 4(1-2), 1991: 5(1-2), 1992: 6(1-2), 1994: 7(1), 1996: 8(1), 1997: 9(1), 1998: 10(1)
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CLOCKSS Archive
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Preserved
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2026-05-18
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5 to 38
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Portico
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Preserved
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2026-05-14
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Preserved : 2000: 12(1-2), 2001: 13(1-2), 2002: 14(1-2), 2003: 15(1-2), 2004: 16(1-2), 2005: 17(1-2), 2006: 18(1-2), 2007: 19(1-2), 2008: 20(1-2), 2009: 21(1-2), 2010: 22(1-2), 2011: 23(1-2), 2012: 24(1-3), 2013: 25(1-3), 2014: 26(1-3), 2015: 27(1-3), 2016: 28(1-3), 2017: 29(1-3), 2018: 30(1-3), 2019: 31(1-3), 2020: 32(1-3), 2021: 33(1-3), 2022: 34(1-3), 2023: 35(1-3), 2024: 36(1-3), 2025: 37(1-3), 2026: 38(1-2)
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