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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 5 (1, 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); 14 (, 1 to 4); 15 (, 1 to 4); 16 (, 1 to 4); 17 (, 1 to 4); 18 (, 1 to 4); 19 (, 1 to 4); 20 (, 1 to 4); 21 (, 1 to 4); 22 (, 1 to 4); 23 (, 1 to 4); 24 (, 1 to 4); 25 (, 1 to 4); 26 (, 1 to 4); 27 (, 1 to 4); 28 (, 1 to 6); 29 (, 1 to 6); 30 (, 1 to 6); 31 (, 1 to 6); 32 (, 1, 2, 5, 6); 33 (, 1 to 6); 34 (, 1 to 6); 35 (, 1 to 3, 5, 6); 36 (, 1 to 6); 37 (, 1 to 5); 1985; 1986; 1987; 1988; 1989; 1990; 1991; 1992; 1993; 1994; 1995; 1996; 1997; 1998; 1999; 2000; 2001; 2002; 2003; 2004; 2005; 2006; 2007; 2008; 2009; 2010; 2011; 2012; 2013; 2014; 2015; 2016; 2017
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CLOCKSS Archive
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Preserved
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2026-02-09
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1 to 44
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Portico
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Preserved
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2026-02-12
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Preserved : 1981: 1(1-2), 1982: 2(1-4), 1983: 3(1-4), 1984: 4(1-3, 4, A, 4, B), 1985: 5(1, 2, A, 2, B, 3, A, 3, B, 4), 1986: 6(1-4), 1987: 7(1-4), 1988: 8(1-4), 1989: 9(1-4), 1990: 10(1-4), 1991: 11(1-4), 1992: 12(1-4), 1993: 13(1-4), 1994: 14(1-4), 1995: 15(1-4), 1996: 16(1-4), 1997: 17(1-4), 1998: 18(1-4), 1999: 19(1-4), 2000: 20(1-4), 2001: 21(1-4), 2002: 22(1-4), 2003: 23(1-4), 2004: 24(1-4), 2005: 25(1-4), 2006: 26(1-4), 2007: 27(1-4), 2008: 28(1-6), 2009: 29(1-6), 2010: 30(1-6), 2011: 31(1-6), 2012: 32(1-6), 2013: 33(1-6), 2014: 34(1-6), 2015: 35(1-6), 2016: 36(1-6), 2017: 37(1-6), 2018: 38(1-6), 2019: 39(1-6), 2020: 40(1-6), 2021: 41(1, S1, 2-6), 2022: 42(1-6), 2023: 43(1-6), 2024: 44(1-6)
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LOCKSS Archive
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Preserved
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2026-02-09
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28 to 44
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CLOCKSS Archive
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In Progress
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2026-02-09
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28 to 45
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Portico
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Preserved
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2026-02-12
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Preserved : 2020: 40(2-6), 2021: 41(1-3)
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LOCKSS Archive
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In Progress
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2026-02-09
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45
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Portico
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Preserved
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2026-02-12
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Preserved : 2025: 45(1-6), 2026: 46(1)
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LOCKSS Archive
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Preserved
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2026-02-09
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1 to 37
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CLOCKSS Archive
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Preserved
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2026-02-09
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28 to 37
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Portico
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Preserved
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2026-02-12
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Preserved : 1984: 4(1-3, 4, A, 4, B), 1985: 5(1, 2, A, 2, B, 3, A, 3, B), 1986: 6(1), 1987: 7(1), 1988: 8(1), 1989: 9(1), 1990: 10(1), 1991: 11(1), 1992: 12(1), 1993: 13(1), 1994: 14(1), 1995: 15(1-4), 1996: 16(1-4), 1997: 17(1-4), 1998: 18(1-4), 1999: 19(1-4), 2000: 20(1-4), 2001: 21(1-4), 2002: 22(1-4), 2003: 23(1-4), 2004: 24(1-4), 2005: 25(1-4), 2006: 26(1-4), 2007: 27(1-4), 2008: 28(1-6), 2009: 29(1-6), 2010: 30(1-6), 2011: 31(1-6), 2012: 32(1-6), 2013: 33(1-6), 2014: 34(1-6), 2015: 35(1-6), 2016: 36(1-6), 2017: 37(1-6)
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Technische Informationsbibliothek
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Preserved
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2026-01-13
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vol.17:1-4;vol.18:1-4;vol.19:1-4;vol.20:1-4;vol.21:1-4;vol.22:1-4;vol.23:1-4;vol.24:1-4;vol.25:1-4;vol.26:1-4;vol.27:1-4;vol.28:1-6;vol.29:1-6;vol.30:1-6;vol.31:1-6;vol.32:1-6;vol.33:1-6;vol.34:1-6;vol.35:1-6;vol.36:1-6;vol.37:1-6;vol.38:1-6;vol.39:1-6;vol.40:1-6
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National Digital Preservation Program, China
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Preserved
|
2025-12-04
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Preserved : 45 (2, 4, 5)
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National Digital Preservation Program, China
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Preserved
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2025-10-23
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Preserved : 45 (4)
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