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Scholars Portal
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Preserved
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2026-03-19
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Preserved : 1 (2 to 4); 2 (S1, 1 to 6); 3 (1 to 6); 4 (1 to 6); 5 (1 to 4); 6 (1 to 4); 7 (1 to 4); 8 (1-4); 9 (2 to 4); 10 (1 to 4); 11 (1, 2, 3-4); 12 (1, 2, 3-4); 13 (1, 2-3, 4); 14 (1, 2, 3-4); 15 (1, 2-3, 4); 16 (1, 2-4); 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 4); 29 (1 to 4); 30 (1 to 4); 31 (1 to 4); 32 (1 to 4); 33 (1 to 4); 34 (1 to 4); 35 (1 to 4); 36 (1 to 4); 37 (1 to 4); 38 (1, 2, 3-4); 39 (1, 2, 3-4); 40 (1 to 4); 41 (1, 2, 3-4); 42 (1, 2, 3-4); 43 (1 to 4); 44 (1, 2-3, 4); 45 (1, 2, 3-4); 46 (1, 2, 3-4); 47 (1 to 4); 48 (1 to 4); 49 (1 to 4); 50 (1, 2, 3-4); 51 (1 to 4); 52 (1-2, 3, 4); 53 (1, 2-3, 4); 54 (1 to 4); 55 (1 to 4); 56 (1 to 4); 57 (1 to 4); 58 (1 to 4); 59 (1 to 4); 60 (1 to 4); 61 (1 to 4); 62 (1 to 4); 63 (1 to 4); 64 (1 to 4); 65 (1 to 4); 66 (1 to 4); 67 (1 to 12); 68 (1 to 8); 69 (1 to 8); 70 (1, 2, 4 to 8); 71 (1 to 8); 72 (1 to 8); 73 (3 to 8); 74 (1 to 8); 75 (S1, 1 to 8); 76 (1 to 8); 77 (1 to 8); 78 (1, 2, 3-4, 5 to 8); 79 (1 to 8); 80 (1 to 8); 81 (1 to 8); 82 (1 to 8); 83 (1 to 8); 84 (1 to 8); 85 (1 to 8); 86 (1 to 8); 87 (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.40:1-4;vol.41:1-2,3-4;vol.42:1-2,3-4;vol.43:1-4;vol.44:1-1,4,2-3;vol.45:1-2,3-4;vol.46:1-2,3-4;vol.47:1-4;vol.48:1-4;vol.49:1-4;vol.50:1-2,3-4;vol.51:1-4;vol.52:3-4,1-2;vol.53:1-1,4,2-3;vol.54:1-4;vol.55:1-4;vol.56:1-4;vol.57:1-4;vol.58:1-4;vol.59:1-4;vol.60:1-4;vol.61:1-4;vol.62:1-4;vol.63:1-4;vol.64:1-4;vol.65:1-4;vol.66:1-4;vol.67:1-12;vol.68:1-8;vol.69:1-8;vol.70:1-8;vol.71:1-8;vol.72:1-8;vol.73:1-8;vol.74:1-8;vol.75:1-8,sup.S1;vol.76:1-8;vol.77:1-8;vol.78:1-2,5-8,3-4;vol.79:1-8;vol.80:1-8;vol.81:1-8
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Portico
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Preserved
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2026-04-02
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Preserved : 1981: 1(1-4), 1982: 2(1, S 1, 2-6), 1983: 3(1-6), 1984: 4(1-6), 1985: 5(1-4), 1985: 6(1-4), 1986: 7(1-4), 1986: 8(1-4), 1986: 9(1-4), 1987: 10(1-4), 1987: 11(1-4), 1988: 12(1-4), 1988: 13(1-4), 1988: 14(1-4), 1988: 15(1-4), 1989: 16(1-4), 1989: 17(1-4), 1989: 18(1-4), 1990: 19(1-4), 1990: 20(1-4), 1990: 21(1-4), 1991: 22(1-4), 1991: 23(1-4), 1991: 24(1-4), 1992: 25(1-4), 1992: 26(1-4), 1992: 27(1-4), 1993: 28(1-4), 1993: 29(1-4), 1993: 30(1-4), 1994: 31(1-4), 1994: 32(1-4), 1994: 33(1-4), 1995: 34(1-4), 1995: 35(1-4), 1995: 36(1-4), 1996: 37(1-4), 1996: 38(1-4), 1996: 39(1-4), 1997: 40(1-4), 1997: 41(1-4), 1997: 42(1-4), 1998: 43(1-4), 1998: 44(1-4), 1998: 45(1-4), 1999: 46(1-4), 1999: 47(1-4), 1999: 48(1-4), 2000: 49(1-4), 2000: 50(1-4), 2000: 51(1-4), 2001: 52(1-4), 2001: 53(1-4), 2001: 54(1-4), 2002: 55(1-4), 2002: 56(1-4), 2002: 57(1-4), 2003: 58(1-4), 2003: 59(1-4), 2003: 60(1-4), 2004: 61(1-4), 2004: 62(1-4), 2004: 63(1-4), 2005: 64(1-4), 2005: 65(1-4), 2005: 66(1-4), 2006: 67(1-12), 2007: 68(1-8), 2008: 69(1-8), 2009: 70(1-8), 2010: 71(1-8), 2011: 72(1-8), 2012: 73(1-8), 2013: 74(1-8), 2014: 75(1, S1, 2-8), 2015: 76(1-8), 2016: 77(1-8), 2017: 78(1-8), 2018: 79(1-8), 2019: 80(1-8), 2020: 81(1-8), 2021: 82(1-8), 2022: 83(1-8), 2023: 84(1-8), 2024: 85(1-8), 2025: 86(1-8), 2026: 87(1-2)
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CLOCKSS Archive
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Preserved
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2026-04-06
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22 to 87
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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 4); 5 (1, 2, 3?4); 6 (1 to 4); 7 (1 to 8); 8 (1 to 8); 37 (1 to 4); 38 (1, 2, 3‐4); 39 (1, 2, 3‐4); 41 (1, 2, 3?4); 42 (1, 2, 3?4); 43 (1 to 4); 44 (1, 2?3, 4); 45 (1, 2, 3?4); 46 (1, 2, 3?4); 47 (1 to 4); 48 (1 to 4); 49 (1 to 4); 51 (1 to 4); 52 (1?2, 3, 4); 53 (1, 2?3, 4); 54 (1 to 4); 55 (1 to 4); 56 (1 to 4); 57 (1 to 4); 58 (1 to 4); 59 (1 to 4); 61 (1 to 4); 62 (1 to 4); 63 (1 to 4); 64 (1 to 4); 65 (1 to 4); 66 (1 to 4); 67 (1 to 9, 11, 12); 68 (1 to 8); 69 (1 to 8); 71 (1 to 8); 72 (1 to 8); 73 (1 to 8); 74 (1 to 8); 75 (, 1 to 7); 76 (1 to 8); 77 (1 to 8); 78 (1, 2, 3-4, 5 to 8); 79 (1 to 8); 81 (1 to 8); 82 (1 to 8); 83 (1 to 8); 84 (1 to 8); 85 (1 to 8); 86 (1 to 6)
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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 4); 5 (1, 2, 3?4); 6 (1 to 4); 7 (1 to 8); 8 (1 to 8); 37 (1 to 4); 38 (1, 2, 3‐4); 39 (1, 2, 3‐4); 41 (1, 2, 3?4); 42 (1, 2, 3?4); 43 (1 to 4); 44 (1, 2?3, 4); 45 (1, 2, 3?4); 46 (1, 2, 3?4); 47 (1 to 4); 48 (1 to 4); 49 (1 to 4); 51 (1 to 4); 52 (1?2, 3, 4); 53 (1, 2?3, 4); 54 (1 to 4); 55 (1 to 4); 56 (1 to 4); 57 (1 to 4); 58 (1 to 4); 59 (1 to 4); 61 (1 to 4); 62 (1 to 4); 63 (1 to 4); 64 (1 to 4); 65 (1 to 4); 66 (1 to 4); 67 (1 to 9, 11, 12); 68 (1 to 8); 69 (1 to 8); 71 (1 to 8); 72 (1 to 8); 73 (1 to 8); 74 (1 to 8); 75 (, 1 to 7); 76 (1 to 8); 77 (1 to 8); 78 (1, 2, 3-4, 5 to 8); 79 (1 to 8); 81 (1 to 8); 82 (1 to 8); 83 (1 to 8); 84 (1 to 8); 85 (1 to 8); 86 (1 to 6)
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