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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 4); 3 (, 1, 2-3, 4); 4 (, 1); 5 (, 1); 6 (, 1); 7 (, 1); 8 (, 1); 9 (, 1); 10 (, 1); 11 (, 1); 12 (, 1); 13 (, 1); 14 (, 1); 15 (, 1); 16 (, 1); 17 (, 1); 18 (, 1); 19 (, 1); 20 (, 1); 21 (, 1); 22 (, 1); 23 (, 1); 24 (, 1); 25 (, 1 to 3); 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 to 3); 35 (, 1 to 3); 36 (, 1 to 3); 37 (, 1 to 3); 38 (, 1 to 3); 39 (, 1 to 3); 40 (, 1 to 3); 41 (, 1 to 3); 42 (, 1 to 3); 43 (, 1 to 3); 44 (, 1 to 3); 45 (, 1 to 3); 46 (, 1, 2-3); 47 (, 1 to 3); 48 (, 1 to 3); 49 (, 1 to 3); 50 (, 1 to 3); 51 (, 1 to 3); 52 (, 1 to 3); 53 (, 1 to 3); 54 (, 1 to 3); 55 (, 1 to 3); 56 (, 1 to 3); 57 (, 1 to 3); 58 (, 1 to 3); 59 (, 1 to 3); 60 (, 1 to 3); 61 (, 1 to 3); 62 (, 1 to 3); 63 (, 1 to 3); 64 (, 1 to 3); 65 (, 1 to 3); 66 (, 1 to 3); 67 (, 1 to 3); 68 (, 1 to 3); 69 (, 1 to 3); 70 (, 1 to 3); 71 (, 1 to 3); 72 (, 1 to 3); 73 (, 1 to 3); 74 (, 1 to 3); 75 (, 1 to 3); 76 (, 1 to 3); 77 (, 1 to 3); 78 (, 1 to 3); 80 (, 2, 3); 81 (, 1 to 3); 82 (, 1 to 3); 83 (, 1 to 3); 84 (, 1 to 3); 85 (, 1 to 3); 86 (, 1 to 3); 87 (, 1 to 3); 88 (, 1 to 3); 89 (, 1 to 3); 90 (, 1 to 3); 91 (, 1 to 3); 92 (, 1); 1974; 1975; 1976; 1977; 1979; 1980; 1981; 1982; 1983; 1984; 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; 2018; 2019; 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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4 to 50
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CLOCKSS Archive
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Preserved
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2026-02-09
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1 to 93
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LOCKSS Archive
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In Progress
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2026-02-09
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65, 66, 79, 80
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LOCKSS Archive
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Preserved
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2026-02-09
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67 to 78
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Portico
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Preserved
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2026-02-12
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Preserved : 1974/1975: 1(1-4), 1975: 2(1-4), 1976: 3(1-4), 1977: 4(1), 1979: 5(1), 1980: 6(1), 1981: 7(1), 1982: 8(1), 1982: 9(1), 1983: 10(1), 1984: 11(1), 1984: 12(1), 1985: 13(1), 1986: 14(1), 1987: 15(1), 1987: 16(1), 1988: 17(1), 1988: 18(1), 1989: 19(1), 1989: 20(1), 1990: 21(1), 1990: 22(1), 1991: 23(1), 1991: 24(1), 1992: 25(1-3), 1992: 26(1-3), 1993: 27(1-3), 1993: 28(1-3), 1994: 29(1-3), 1994: 30(1-3), 1995: 31(1-3), 1995: 32(1-3), 1996: 33(1-3), 1996: 34(1-3), 1997: 35(1-3), 1997: 36(1-3), 1998: 37(1-3), 1998: 38(1-3), 1999: 39(1-3), 1999: 40(1-3), 2000: 41(1-3), 2000: 42(1-3), 2001: 43(1-3), 2001: 44(1-3), 2002: 45(1-3), 2002: 46(1-3), 2002/2003: 47(1-3), 2003: 48(1-3), 2004: 49(1-3), 2004: 50(1-3), 2005: 51(1-3), 2005: 52(1-3), 2006: 53(1-3), 2006: 54(1-3), 2007: 55(1-3), 2007: 56(1-3), 2008: 57(1-3), 2008: 58(1-3), 2009: 59(1-3), 2009: 60(1-3), 2010: 61(1-3), 2010: 62(1-3), 2011: 63(1-3), 2011: 64(1-3), 2012: 65(1-3), 2012: 66(1), 2013: 67(1-3), 2013: 68(1-3), 2014: 69(1-3), 2014: 70(1-3), 2015: 71(2-3), 2015: 72(1-3), 2016: 73(1-3), 2016: 74(1-3), 2017: 75(1-3), 2017: 76(1-3), 2018: 77(1-3), 2018: 78(1-3), 2019: 79(1-3), 2017/2019: 80(1-3), 2018: 81(1-3), 2018/2019: 82(1-3), 2021: 83(1-3), 2021: 84(1, S 1, 2, S 2, 3), 2022: 85(1-3), 2022: 86(1-3), 2023: 87(1-3), 2023: 88(1-3), 2024: 89(1-3), 2024: 90(1-3), 2025: 91(1-3), 2025: 92(1-3), 2026: 93(1-2)
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Library of Congress
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Preserved
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2025-04-07
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77 (2, 3); 78 (1 to 3); 79 (1 to 3); 80 (1 to 3); 81 (1 to 3); 82 (1 to 3); 83 (1 to 3); 84 (1, S1, 2, S2, 3); 85 (1 to 3); 86 (1 to 3); 87 (1 to 3); 88 (1 to 3); 89 (1 to 3); 90 (1 to 3)
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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 3); 5 (1 to 3); 6 (1 to 3); 7 (1 to 3); 8 (1 to 3); 9 (1 to 3); 35 (1 to 3); 36 (1 to 3); 37 (1 to 3); 38 (1 to 3); 39 (1 to 3); 41 (1 to 3); 42 (1 to 3); 43 (1 to 3); 44 (1 to 3); 45 (1 to 3); 46 (1, 2); 47 (1 to 3); 48 (1 to 3); 49 (1 to 3); 51 (1 to 3); 52 (1 to 3); 53 (1 to 3); 54 (1 to 3); 55 (1 to 3); 56 (1 to 3); 57 (1 to 3); 58 (1 to 3); 59 (1 to 3); 61 (1 to 3); 62 (1 to 3); 63 (1 to 3); 64 (1 to 3); 65 (1 to 3); 66 (1 to 3); 67 (1 to 3); 68 (1 to 3); 69 (1 to 3); 71 (1 to 3); 72 (1 to 3); 73 (1 to 3); 74 (1 to 3); 75 (1 to 3); 76 (1 to 3); 77 (1 to 3); 78 (1 to 3); 79 (1 to 3); 81 (1 to 3); 82 (1 to 3); 83 (1 to 3); 84 (Suppl 2, 1 to 3); 85 (1 to 3); 86 (1 to 3); 87 (1 to 3); 88 (1 to 3); 89 (1 to 3)
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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 3); 5 (1 to 3); 6 (1 to 3); 7 (1 to 3); 8 (1 to 3); 9 (1 to 3); 35 (1 to 3); 36 (1 to 3); 37 (1 to 3); 38 (1 to 3); 39 (1 to 3); 41 (1 to 3); 42 (1 to 3); 43 (1 to 3); 44 (1 to 3); 45 (1 to 3); 46 (1, 2); 47 (1 to 3); 48 (1 to 3); 49 (1 to 3); 51 (1 to 3); 52 (1 to 3); 53 (1 to 3); 54 (1 to 3); 55 (1 to 3); 56 (1 to 3); 57 (1 to 3); 58 (1 to 3); 59 (1 to 3); 61 (1 to 3); 62 (1 to 3); 63 (1 to 3); 64 (1 to 3); 65 (1 to 3); 66 (1 to 3); 67 (1 to 3); 68 (1 to 3); 69 (1 to 3); 71 (1 to 3); 72 (1 to 3); 73 (1 to 3); 74 (1 to 3); 75 (1 to 3); 76 (1 to 3); 77 (1 to 3); 78 (1 to 3); 79 (1 to 3); 81 (1 to 3); 82 (1 to 3); 83 (1 to 3); 84 (Suppl 2, 1 to 3); 85 (1 to 3); 86 (1 to 3); 87 (1 to 3); 88 (1 to 3); 89 (1 to 3)
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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 : 43 (3); 48 (2, 3); 49 (1-3); 50 (1-3); 51 (1-3); 52 (1-3); 53 (1-3); 54 (1-3); 55 (1-3); 56 (1-3); 57 (1-3); 58 (1-3); 59 (1-3); 60 (1-3); 61 (1-3); 62 (1-3); 63 (1-3); 64 (1-3); 65 (1-3); 66 (1-3); 67 (1-3); 68 (1-3); 69 (1-3); 70 (1-3); 71 (1-3); 72 (1-3); 73 (1-3); 74 (1-3); 75 (1-3); 76 (1-3); 77 (1-3); 78 (1-3); 79 (1-3); 80 (1-3)
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