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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); 2 (, 1); 3 (, 1); 4 (, 1); 5 (, 1); 6 (, 1); 7 (, 1); 8 (, 1); 9 (, 1 to 3); 10 (, 1 to 3); 11 (, 1); 12 (, 1 to 3); 13 (, 1); 14 (, 1 to 3); 15 (, 1 to 3); 16 (, 1 to 3); 17 (, 1 to 3); 18 (, 1 to 3); 19 (, 1/3); 20 (, 1 to 3); 21 (, 1 to 3); 22 (, 1/3); 23 (, 1 to 3); 24 (, 1 to 3); 25 (, 1 to 3); 26 (, 1 to 3); 27 (, 1 to 3); 28 (, 1 to 3); 29 (, 1 to 3); 30 (, 1/2, 3); 31 (, 1, 2/3); 32 (, 1 to 3); 33 (, 1 to 3); 34 (, 1 to 3); 35 (, 1/3); 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, 2/3); 46 (, 1 to 3); 47 (, 1 to 3); 48 (, 1, 2/3); 49 (, 1 to 3); 50 (, 1, 2/3); 51 (, 1, 2/3); 52 (, 1 to 3); 53 (, 1/2, 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, 2/3); 62 (, 1 to 3); 63 (, 1 to 3); 64 (, 1 to 3); 65 (, 1 to 3); 66 (, 1/2, 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 6); 79 (, 1 to 9); 80 (, 1 to 6); 81 (, 1 to 6); 82 (, 1 to 6); 83 (, 1 to 6); 84 (, 1 to 6); 85 (, 1 to 6); 86 (, 1 to 6); 87 (, 1 to 6); 88 (, 1 to 8); 89 (, 1 to 8); 90 (, 1 to 5); 1924; 1925; 1928; 1929; 1930; 1931; 1932; 1936; 1975; 1976; 1977; 1978; 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; 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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30 to 78
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Portico
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Preserved
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2026-02-12
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Preserved : 1930: 1(1), 1931: 2(1), 1932: 3(1), 1934: 4(1), 1935: 5(1), 1936: 6(1), 1937: 7(1), 1939: 8(1), 1975: 9(1-3), 1976: 10(1-3), 1977: 11(1), 1978: 12(1-3), 1978: 13(1)
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CLOCKSS Archive
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Preserved
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2026-02-09
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1 to 91
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Portico
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Preserved
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2026-02-12
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Preserved : 1979: 14(1-3), 1980: 15(1-3), 1981: 16(1-3), 1982: 17(1-3), 1982: 18(1-3), 1983: 19(1-3), 1983: 20(1-3), 1984: 21(1-3), 1985: 22(1-3), 1985: 23(1-3), 1986: 24(1-3), 1986: 25(1-3), 1987: 26(1-3), 1987: 27(1-3), 1988: 28(1-3), 1988: 29(1-3), 1989: 30(1-3), 1989: 31(1-3), 1990: 32(1-3), 1990: 33(1-3), 1991: 34(1-3), 1991: 35(1-3), 1992: 36(1-3), 1992: 37(1-3), 1993: 38(1-3), 1993: 39(1-3), 1994: 40(1-3), 1994: 41(1-3), 1995: 42(1-3), 1995: 43(1-3), 1996: 44(1-3), 1996: 45(1-3)
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Portico
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Preserved
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2026-02-12
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Preserved : 2006: 64(3), 2006: 65(1), 2007: 66(3), 2007: 67(1), 2008: 68(2-3), 2008: 69(2-3), 2009: 70(1-3), 2009: 71(1-3), 2010: 72(1-3), 2010: 73(1-3), 2011: 74(1-3), 2011: 75(1-3), 2012: 76(1-3), 2012: 77(1, 3), 2013: 78(1-6), 2014: 79(1-8, 10), 2015: 80(1, S 1, 2-6), 2016: 81(1-6), 2017: 82(1-6), 2018: 83(1-6), 2019: 84(1-6), 2018/2020: 85(1-6), 2021: 86(1-6), 2022: 87(1-6), 2023: 88(2-8), 2024: 89(1-8), 2025: 90(1-8), 2026: 91(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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76, 77, 84
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LOCKSS Archive
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Preserved
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2026-02-09
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78 to 83
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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 : 46 (1-3); 47 (1-3); 48 (1, 2); 49 (1-3); 50 (1, 2); 51 (1, 2); 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); 62 (2, 3); 63 (1-3); 64 (1-3); 65 (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 (supplement-1, 1-6); 79 (supplement-1, 1-6); 80 (supplement-3, 1-6); 81 (1-6); 82 (1-6); 83 (1-6); 84 (1-6)
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Library of Congress
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Preserved
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2025-04-07
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83 (1 to 6); 84 (1 to 6); 85 (1 to 6); 86 (1 to 6); 87 (1 to 6); 88 (1 to 8); 89 (1 to 7)
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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 : 5 (1, 2); 6 (1 to 3); 7 (1 to 3); 8 (1 to 6); 46 (1 to 3); 47 (1 to 3); 48 (1, 2); 49 (1 to 3); 51 (1, 2); 52 (1 to 3); 53 (1, 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, 2); 62 (1 to 3); 63 (1 to 3); 64 (1 to 3); 65 (1 to 3); 66 (1, 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 6); 79 (1 to 7, 9); 81 (1 to 6); 82 (1 to 6); 83 (1 to 6); 84 (1 to 6); 85 (1 to 6); 86 (1 to 6); 87 (1 to 6); 88 (1 to 8); 89 (1 to 8)
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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 : 5 (1, 2); 6 (1 to 3); 7 (1 to 3); 8 (1 to 6); 46 (1 to 3); 47 (1 to 3); 48 (1, 2); 49 (1 to 3); 51 (1, 2); 52 (1 to 3); 53 (1, 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, 2); 62 (1 to 3); 63 (1 to 3); 64 (1 to 3); 65 (1 to 3); 66 (1, 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 6); 79 (1 to 7, 9); 81 (1 to 6); 82 (1 to 6); 83 (1 to 6); 84 (1 to 6); 85 (1 to 6); 86 (1 to 6); 87 (1 to 6); 88 (1 to 8); 89 (1 to 8)
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