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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 1 (1 to 4); 2 (, 1 to 6); 3 (, 1 to 4); 4 (, 1 to 4); 5 (, 1 to 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 6); 25 (, 1 to 4, 5-6); 26 (, 1 to 6); 27 (, 1 to 6); 28 (, 1 to 6); 29 (, 1 to 6); 30 (, 1 to 6); 31 (, 1 to 6); 32 (, 1 to 6); 36 (, 1 to 6); 37 (, 1 to 4, 5-6); 38 (, 1-2, 3 to 6); 39 (, 1 to 6); 40 (, 1 to 6); 41 (, 1 to 6); 42 (, 1 to 6); 43 (, 1 to 6); 44 (, 1, 2-3, 4 to 6); 45 (, 1 to 3, 4-5, 6); 46 (, 1 to 3, 4-5, 6); 47 (, 1 to 6); 48 (, 1, 2, 3-4, 5, 6); 49 (, 1 to 6); 50 (, 1 to 6); 51 (, 1 to 6); 52 (, 1 to 6); 53 (, 1 to 6); 54 (, 1 to 6); 55 (, 1 to 6); 56 (, 1 to 6); 57 (, 1 to 6); 58 (, 1 to 4, 6); 59 (, 1 to 6); 60 (, 1 to 6); 61 (, 1 to 6); 62 (, 1 to 6); 63 (, 1 to 6); 64 (, 1 to 4, 5-6); 65 (, 1-2, 3, 4-5, 6); 66 (, 1, 2-3, 4 to 6); 67 (, 1, 2, 3-4, 5, 6); 68 (, 1, 2, 3-4, 5, 6); 69 (, 1 to 12); 70 (, 1 to 12); 71 (, 1 to 12); 72 (, 1 to 5, 7 to 12); 73 (, 1 to 12); 74 (, 1 to 3, 5 to 12); 75 (, 1, 2, 6 to 12); 76 (, 1 to 12); 77 (, 1 to 12); 78 (, 1 to 12); 79 (, 1 to 12); 80 (, 1 to 12); 81 (, 1 to 10, 12); 82 (, 1 to 12); 83 (, 1 to 12); 84 (, 1 to 12); 85 (, 1 to 12); 86 (, 1 to 12); 87 (, 1 to 12); 88 (, 1 to 8); 1984; 1985; 1986; 1987; 1988; 1989; 1990; 1991; 1992; 1993; 1994; 1995; 1997; 1998; 1999; 2000; 2001; 2002; 2003; 2004; 2005; 2006; 2007; 2008; 2009; 2010; 2011; 2012; 2013; 2014; 2015; 2016; 2017; 2018; 2019; 2020; 2021; 2022; 2023; 2024; 2025
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Internet Archive
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Preserved
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2025-08-08
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69
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CLOCKSS Archive
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Preserved
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2026-02-09
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20 to 89
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Portico
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Preserved
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2026-02-12
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Preserved : 1992: 20(1-4), 1992: 21(1-4), 1992: 22(1-4), 1992: 23(1-4), 1993: 24(1-6), 1993: 25(1-6), 1993: 26(1-6), 1994: 27(1-6), 1994: 28(1-6), 1994: 29(1-6), 1995: 30(1-6), 1995: 31(1-6), 1995: 32(1-6), 1996: 33(1-6), 1996: 34(1-6), 1996: 35(1-6), 1997: 36(1-6), 1997: 37(1-6), 1997: 38(1-6), 1997: 39(1-6), 1998: 40(1-6), 1998: 41(1-6), 1998: 42(1-6), 1998: 43(1-6), 1999: 44(1-6), 1999: 45(1-6), 1999: 46(1-6), 1999: 47(1-6), 2000: 48(1-6), 2000: 49(1-6), 2000: 50(1-6), 2000: 51(1-6), 2001: 52(1-6), 2001: 53(1-6), 2001: 54(1-6), 2001: 55(1-6), 2002: 56(1-6), 2002: 57(1-6), 2002: 58(1-6), 2002: 59(1-6), 2003: 60(1-6), 2003: 61(1-6), 2003: 62(1-6), 2004: 63(1-6), 2004: 64(1-6), 2004: 65(1-6), 2005: 66(1-6), 2005: 67(1-6), 2005: 68(1-6), 2006: 69(1-12), 2007: 70(1-12), 2008: 71(1-12), 2009: 72(1-12), 2010: 73(1-12), 2011: 74(1-12), 2012: 75(1-12), 2013: 76(1-12), 2014: 77(1-12), 2015: 78(1-12), 2016: 79(1-12), 2017: 80(1-12), 2018: 81(1-12), 2019: 82(1-12), 2020: 83(1-12), 2021: 84(1-12), 2022: 85(1-12), 2023: 86(1-12), 2024: 87(1-12), 2025: 88(1-12), 2026: 89(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.36:1-6;vol.37:1-4,5-6;vol.38:3-6,1-2;vol.39:1-6;vol.40:1-6;vol.41:1-6;vol.42:1-6;vol.43:1-6;vol.44:1-1,4-6,2-3;vol.45:1-3,6,4-5;vol.46:1-3,6,4-5;vol.47:1-6;vol.48:1-2,5-6,3-4;vol.49:1-6;vol.50:1-6;vol.51:1-6;vol.52:1-6;vol.53:1-6;vol.54:1-6;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;vol.62:1-6;vol.63:1-6;vol.64:1-4,5-6;vol.65:3-3,6,1-2,4-5;vol.66:1-1,4-6,2-3;vol.67:1-2,5-6,3-4;vol.68:1-2,5-6,3-4;vol.69:1-12;vol.70:1-12;vol.71:1-12;vol.72:1-12;vol.73:1-12;vol.74:1-12;vol.75:1-12;vol.76:1-12;vol.77:1-12;vol.78:1-12;vol.79:1-12;vol.80:1-12;vol.81:1-12;vol.82:1-12;vol.83:1-12;vol.84:1
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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 : 4 (1 to 6); 5 (1 to 6); 6 (1 to 6); 7 (1 to 9, 11, 12); 8 (1 to 9, 11, 12); 33 (1 to 6); 34 (1 to 6); 35 (1 to 6); 36 (1 to 6); 37 (1 to 4, 5?6); 38 (1?2, 3 to 6); 39 (1 to 6); 41 (1 to 6); 42 (1 to 6); 43 (1 to 6); 44 (1, 2?3, 4 to 6); 45 (1 to 3, 4?5, 6); 46 (1 to 3, 4?5, 6); 47 (1 to 6); 48 (1, 2, 3?4, 5, 6); 49 (1 to 6); 51 (1 to 6); 52 (1 to 6); 53 (1 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 (1 to 6); 62 (1 to 6); 63 (1 to 6); 64 (1 to 4, 5?6); 65 (1?2, 3, 4?5, 6); 66 (1, 2?3, 4 to 6); 67 (1, 2, 3?4, 5, 6); 68 (1, 2, 3?4, 5, 6); 69 (1 to 9, 11, 12); 71 (1 to 9, 11, 12); 72 (1 to 9, 11, 12); 73 (1 to 9, 11, 12); 74 (1 to 9, 11, 12); 75 (1 to 9, 11, 12); 76 (1 to 9, 11, 12); 77 (1 to 9, 11, 12); 78 (1 to 9, 11, 12); 79 (1 to 9, 11, 12); 81 (1 to 9, 11, 12); 82 (1 to 9, 11, 12); 83 (1 to 9, 11, 12); 84 (1 to 9, 11, 12); 85 (1 to 9, 11, 12); 86 (1 to 9, 11, 12); 87 (1 to 9, 11, 12); 88 (1 to 9)
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National Digital Preservation Program, China
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Preserved
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2025-12-04
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Preserved : 4 (1 to 6); 5 (1 to 6); 6 (1 to 6); 7 (1 to 9, 11, 12); 8 (1 to 9, 11, 12); 33 (1 to 6); 34 (1 to 6); 35 (1 to 6); 36 (1 to 6); 37 (1 to 4, 5?6); 38 (1?2, 3 to 6); 39 (1 to 6); 41 (1 to 6); 42 (1 to 6); 43 (1 to 6); 44 (1, 2?3, 4 to 6); 45 (1 to 3, 4?5, 6); 46 (1 to 3, 4?5, 6); 47 (1 to 6); 48 (1, 2, 3?4, 5, 6); 49 (1 to 6); 51 (1 to 6); 52 (1 to 6); 53 (1 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 (1 to 6); 62 (1 to 6); 63 (1 to 6); 64 (1 to 4, 5?6); 65 (1?2, 3, 4?5, 6); 66 (1, 2?3, 4 to 6); 67 (1, 2, 3?4, 5, 6); 68 (1, 2, 3?4, 5, 6); 69 (1 to 9, 11, 12); 71 (1 to 9, 11, 12); 72 (1 to 9, 11, 12); 73 (1 to 9, 11, 12); 74 (1 to 9, 11, 12); 75 (1 to 9, 11, 12); 76 (1 to 9, 11, 12); 77 (1 to 9, 11, 12); 78 (1 to 9, 11, 12); 79 (1 to 9, 11, 12); 81 (1 to 9, 11, 12); 82 (1 to 9, 11, 12); 83 (1 to 9, 11, 12); 84 (1 to 9, 11, 12); 85 (1 to 9, 11, 12); 86 (1 to 9, 11, 12); 87 (1 to 9, 11, 12); 88 (1 to 9, 11)
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