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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 1 (1-4); 2 (, 1-4); 3 (, 1-4); 4 (, 1-4); 5 (, 1-4); 6 (, 1-6); 7 (, 1-6); 8 (, 1-6); 9 (, 1 to 6); 10 (, 1, 2-4, 5, 6); 11 (, 1 to 6); 12 (, 1, 2-3, 4-5, 6); 13 (, 1-2, 3 to 6); 14 (, 1 to 6); 15 (, 1 to 6); 16 (, 1 to 3, 4-5, 6); 17 (, 1 to 4); 18 (, 1 to 4); 19 (, 1-2, 3, 4); 20 (, 1 to 4); 21 (, 1 to 4); 22 (, 1-2, 3, 4); 23 (, 1 to 4); 24 (, 1, 2, 3-4); 25 (, 1, 2-3, 4); 26 (, 1, 2, 3-4); 27 (, 1, 2, 3-4); 28 (, 4); 29 (, 1-2, 3, 4); 30 (, 2 to 4); 31 (, 3); 33 (, 1 to 4); 34 (, 4); 35 (, 1, 3); 36 (, 1, 4); 37 (, 2 to 4); 38 (, 1 to 3, 4); 39 (, 1 to 4); 40 (, 1 to 4); 41 (, 1 to 4); 42 (, 1, 2, 3-4); 43 (, 1-2, 3, 4); 44 (, 1 to 4); 45 (, 1 to 4); 46 (, 1, 2, 3-4); 47 (, 1 to 4); 48 (, 1 to 4); 49 (, 1 to 4); 50 (, 1 to 4); 51 (, 1 to 4); 52 (, 1 to 4); 53 (, 1 to 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 (, 1-2, 3-4); 63 (, 1-2, 3, 4); 64 (, 1 to 4); 65 (, 1 to 4); 66 (, 1 to 4); 67 (, 1 to 4); 68 (, 1 to 4); 69 (, 1 to 4); 70 (, 1 to 4); 71 (, 1 to 4); 72 (, 1 to 4); 73 (, 1 to 4); 74 (, 1 to 4); 75 (, 1 to 4); 76 (, 1 to 4); 77 (, 1 to 4); 78 (, 1 to 4); 79 (, 1 to 4); 80 (, 1 to 12); 81 (, 2, 6, 9, 10, 11-12); 82 (, 1 to 12); 83 (, 1 to 12); 84 (, 1 to 12); 85 (, 1 to 12); 86 (, 1, 2, 4 to 12); 87 (, 1 to 6); 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; 2018; 2019; 2020; 2021; 2022; 2023; 2024; 2025
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CLOCKSS Archive
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Preserved
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2026-02-09
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1 to 31, 33 to 88
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Portico
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Preserved
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2026-02-12
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Preserved : 1986: 1(1-4), 1987: 2(1-4), 1988: 3(1-4), 1989: 4(1-4), 1990: 5(1-4), 1991: 6(1-6), 1992: 7(1-6), 1992: 8(1-6), 1993: 9(1-6), 1993: 10(1-6), 1994: 11(1-6), 1994: 12(1-6), 1995: 13(1-6), 1995: 14(1-6), 1996: 15(1-6), 1996: 16(1-6), 1997: 17(1-4), 1997: 18(1-4), 1997: 19(1-4), 1998: 20(1-4), 1998: 21(1-4), 1998: 22(1-4), 1999: 23(1-4), 1999: 24(1-4), 1999: 25(1-4), 2000: 26(1-4), 2000: 27(1-4), 2000: 28(1-4), 2001: 29(1-4), 2001: 30(1-4), 2001: 31(1-4), 2002: 32(1-4), 2002: 33(1-4), 2002: 34(1-4), 2003: 35(1-4), 2003: 36(1-4), 2003: 37(1-4), 2004: 38(1-4), 2004: 39(1-4), 2004: 40(1-4), 2005: 41(1-4), 2005: 42(1-4), 2005: 43(1-4), 2006: 44(1-4), 2006: 45(1-4), 2006: 46(1-4), 2007: 47(1-4), 2007: 48(1-4), 2007: 49(1-4), 2008: 50(1-4), 2008: 51(1-4), 2008: 52(1-4), 2009: 53(1-4), 2009: 54(1-4), 2009: 55(1-4), 2010: 56(1-4), 2010: 57(1-4), 2010: 58(1-4), 2011: 59(1-4), 2011: 60(1-4), 2011: 61(1-4), 2012: 62(1-4), 2012: 63(1-4), 2012: 64(1-2), 2013: 65(1-4), 2013: 66(1-4), 2013: 67(1-4), 2014: 68(1-4), 2014: 69(1-4), 2014: 70(1-4), 2015: 71(2-4), 2015: 72(1-4), 2015: 73(1-4), 2016: 74(1-4), 2016: 75(1-4), 2016: 76(1-4), 2017: 77(1-4), 2017: 78(1-4), 2017: 79(1-4), 2018: 80(1-12), 2018/2019: 81(1-12), 2019/2020: 82(1-12), 2021: 83(1-12), 2022: 84(1-12), 2023: 85(1-12), 2024: 86(1-11), 2025: 87(1, 5-12), 2025/2026: 88(1-2)
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LOCKSS Archive
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In Progress
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2026-02-09
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62 to 64
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LOCKSS Archive
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Preserved
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2026-02-09
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65 to 80
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National Library of the Netherlands
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Preserved
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2024-12-15
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Preserved : 28 (1-3); 29 (4); 30 (1-3); 31 (1-4); 32 (1-4); 33 (1, 2); 34 (1-3); 35 (2-4); 36 (1-4); 37 (1-4); 38 (1-4); 39 (1-4); 40 (1-4); 41 (1-4); 42 (1, 2, 3-4); 43 (1-2, 3, 4); 44 (1-4); 45 (1-4); 46 (1, 2, 3-4); 47 (1-4); 48 (1-4); 49 (1-4); 50 (1-4); 51 (1-4); 52 (1-4); 53 (1-4); 54 (1-4); 55 (1-4); 56 (1-4); 57 (1-4); 58 (1-4); 59 (1-4); 60 (1-4); 61 (1-4); 62 (1-2, 3-4); 63 (1-2, 3, 4); 64 (1-4); 65 (1-4); 66 (1-4); 67 (1-4); 68 (1-4); 69 (1-4); 70 (1-4); 71 (1-4); 72 (1-4); 73 (1-4); 74 (1-4); 75 (1-4); 76 (1-4); 77 (1-4); 78 (1-4); 79 (1-4); 80 (1-12); 81 (1-6, 8-10, 11-12)
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Library of Congress
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Preserved
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2025-04-07
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79 (3); 80 (3 to 12); 81 (1 to 11-12); 82 (1 to 12); 83 (1 to 12); 84 (1 to 12); 85 (1 to 12); 86 (1 to 11)
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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 : 2 (1 to 4); 3 (1 to 4); 4 (1 to 4); 5 (1 to 4); 6 (1 to 4); 7 (1 to 4); 8 (1 to 9, 11, 12); 17 (1 to 4); 18 (1 to 4); 19 (1, 3, 4); 21 (1 to 4); 22 (1, 3, 4); 23 (1 to 4); 24 (1 to 3); 25 (1, 2, 4); 26 (1 to 3); 27 (1 to 3); 28 (1 to 4); 29 (1, 3, 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 to 4); 39 (1 to 4); 41 (1 to 4); 42 (1 to 3); 43 (1, 3, 4); 44 (1 to 4); 45 (1 to 4); 46 (1 to 3); 47 (1 to 4); 48 (1 to 4); 49 (1 to 4); 51 (1 to 4); 52 (1 to 4); 53 (1 to 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, 3); 63 (1, 3, 4); 64 (1 to 4); 65 (1 to 4); 66 (1 to 4); 67 (1 to 4); 68 (1 to 4); 69 (1 to 4); 71 (1 to 4); 72 (1 to 4); 73 (1 to 4); 74 (1 to 4); 75 (2 to 4); 76 (1 to 4); 77 (1 to 4); 78 (1 to 4); 79 (1 to 4); 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)
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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 : 2 (1 to 4); 3 (1 to 4); 4 (1 to 4); 5 (1 to 4); 6 (1 to 4); 7 (1 to 4); 8 (1 to 9, 11, 12); 17 (1 to 4); 18 (1 to 4); 19 (1, 3, 4); 21 (1 to 4); 22 (1, 3, 4); 23 (1 to 4); 24 (1 to 3); 25 (1, 2, 4); 26 (1 to 3); 27 (1 to 3); 28 (1 to 4); 29 (1, 3, 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 to 4); 39 (1 to 4); 41 (1 to 4); 42 (1 to 3); 43 (1, 3, 4); 44 (1 to 4); 45 (1 to 4); 46 (1 to 3); 47 (1 to 4); 48 (1 to 4); 49 (1 to 4); 51 (1 to 4); 52 (1 to 4); 53 (1 to 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, 3); 63 (1, 3, 4); 64 (1 to 4); 65 (1 to 4); 66 (1 to 4); 67 (1 to 4); 68 (1 to 4); 69 (1 to 4); 71 (1 to 4); 72 (1 to 4); 73 (1 to 4); 74 (1 to 4); 75 (2 to 4); 76 (1 to 4); 77 (1 to 4); 78 (1 to 4); 79 (1 to 4); 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)
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