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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, 3, 4); 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, 2-3, 4); 9 (, 1-2, 3, 4); 10 (, 1, 2-3, 4); 11 (, 1 to 4); 12 (, 1 to 3); 13 (, 1 to 3); 14 (, 1 to 3); 15 (, 1 to 3); 16 (, 1 to 3); 17 (, 1 to 3); 18 (, 1 to 3); 19 (, 1 to 3); 20 (, 1 to 3); 21 (, 1 to 3); 22 (, 1 to 3); 23 (, 1 to 3); 24 (, 1 to 3); 25 (, 1 to 3); 26 (, 1 to 3); 27 (, 1 to 3); 28 (, 1 to 4); 29 (, 1 to 4); 30 (, 1 to 6); 31 (, 1 to 6); 32 (, 1 to 6); 33 (, 1 to 6); 34 (, 1 to 6); 35 (, 1 to 6); 36 (, 1 to 6); 37 (, 1 to 6); 38 (, 1 to 6); 39 (, 1 to 6); 40 (, 1 to 6); 41 (, 1 to 6); 42 (, 1 to 6); 43 (, 1 to 6); 44 (, 1 to 6); 45 (, 1, 2, 3/4, 5, 6); 46 (, 1 to 6); 47 (, 1 to 6); 48 (, 1, 2, 4 to 12); 49 (, 1 to 3, 4/5, 6 to 12); 50 (, 1 to 12); 51 (, 1 to 10, 11-12); 52 (, 1 to 12); 53 (, 1 to 12); 54 (, 1 to 12); 55 (, 1 to 12); 56 (, 1 to 12); 57 (, 1 to 12); 58 (, 1 to 12); 59 (, 1 to 12); 60 (, 1 to 12); 61 (, 1 to 12); 62 (, 1 to 12); 63 (, 1 to 12); 64 (, 1 to 12); 65 (, 1 to 12); 66 (, 1 to 12); 67 (, 1 to 12); 68 (, 1, 3, 5, 7 to 12); 69 (, 1 to 12); 70 (, 1 to 12); 71 (, 1 to 12); 72 (, 1 to 12); 73 (, 1); 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
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Internet Archive
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Preserved
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2025-08-08
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11 to 35
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Portico
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Preserved
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2026-02-12
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Preserved : 1976: 1(1-4), 1977: 2(1-4), 1977/1978: 3(1-4), 1978: 4(1-4), 1978/1979: 5(1-4), 1979: 6(1-4), 1979/1980: 7(1-4), 1980: 8(1-4), 1980: 9(1-4), 1980/1981: 10(1-4), 1981: 11(1-4), 1981/1982: 12(1-3), 1982: 13(1-3), 1982/1983: 14(1-3), 1983/1998: 15(1-4), 1983/1999: 16(1-4), 1984/2000: 17(1-4), 1984: 18(1-3), 1985: 19(1-3), 1985: 20(1-3), 1986: 21(1-3), 1986: 22(1-3), 1986: 23(1-3), 1987: 24(1-3), 1987: 25(1-3), 1988: 26(1-3), 1988: 27(1-3), 1989: 28(1-4), 1989: 29(1-4), 1989/1990: 30(1-6), 1990: 31(1-6), 1990/1991: 32(1-6), 1991: 33(1-6), 1991/1992: 34(1-6), 1992: 35(1-6), 1993: 36(1-6), 1993: 37(1-6), 1994: 38(1-6), 1994: 39(1-6), 1995: 40(1-6), 1995: 41(1-6), 1996: 42(1-6), 1996/1997: 43(1-6), 1997: 44(1-6), 1997/1998: 45(1-6), 1998: 46(1-6), 1998/1999: 47(1-6), 1999/2000: 48(1-12), 2000/2001: 49(1-12), 2001/2002: 50(1-12), 2002: 51(1-12), 2003: 52(1-12), 2004: 53(1-12), 2005: 54(1-12), 2006: 55(1-12), 2007: 56(1-12), 2008: 57(1, S 1, 2-12), 2009: 58(1-12), 2010: 59(1-12), 2011: 60(1-12), 2012: 61(1-12), 2013: 62(1-7, 9-12), 2014: 63(1-12), 2015: 64(3-12), 2016: 65(1-12), 2017: 66(1-12), 2018: 67(1-12), 2019: 68(1-12), 2020: 69(1-12), 2021: 70(1-12), 2022: 71(1-12), 2023: 72(1-12), 2024: 73(1-12), 2024/2025: 74(1-12), 2026: 75(1-3)
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LOCKSS Archive
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Preserved
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2026-02-09
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1 to 14, 17 to 67
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LOCKSS Archive
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In Progress
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2026-02-09
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68
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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 73 (2 to 12); 74 (, 1 to 8); 2024; 2025
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Library of Congress
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Preserved
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2025-04-07
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66 (3, 9); 67 (1 to 12); 68 (1 to 12); 69 (1 to 12); 70 (1 to 12); 71 (1 to 12); 72 (1 to 12); 73 (1 to 12)
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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 to 9, 11, 12); 6 (1 to 9, 11, 12); 7 (1 to 9, 11, 12); 43 (5, 6); 44 (1 to 6); 45 (1 to 3, 5, 6); 46 (1 to 6); 47 (1 to 6); 48 (1, 2, 4 to 9, 11, 12); 49 (1 to 4, 6 to 9, 11, 12); 51 (1 to 9, 11); 52 (1 to 9, 11, 12); 53 (1 to 9, 11, 12); 54 (1 to 9, 11, 12); 55 (1 to 9, 11, 12); 56 (1 to 9, 11, 12); 57 (1 to 9, 11, 12); 58 (1 to 9, 11, 12); 59 (1 to 9, 11, 12); 61 (1 to 9, 11, 12); 62 (1 to 9, 11, 12); 63 (1 to 9, 11, 12); 64 (1 to 9, 11, 12); 65 (1 to 9, 11, 12); 66 (1 to 9, 11, 12); 67 (1 to 9, 11, 12); 68 (1 to 9, 11, 12); 69 (1 to 9, 11, 12); 71 (1 to 9, 11, 12); 72 (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 : 5 (1 to 9, 11, 12); 6 (1 to 9, 11, 12); 7 (1 to 9, 11, 12); 43 (5, 6); 44 (1 to 6); 45 (1 to 3, 5, 6); 46 (1 to 6); 47 (1 to 6); 48 (1, 2, 4 to 9, 11, 12); 49 (1 to 4, 6 to 9, 11, 12); 51 (1 to 9, 11); 52 (1 to 9, 11, 12); 53 (1 to 9, 11, 12); 54 (1 to 9, 11, 12); 55 (1 to 9, 11, 12); 56 (1 to 9, 11, 12); 57 (1 to 9, 11, 12); 58 (1 to 9, 11, 12); 59 (1 to 9, 11, 12); 61 (1 to 9, 11, 12); 62 (1 to 9, 11, 12); 63 (1 to 9, 11, 12); 64 (1 to 9, 11, 12); 65 (1 to 9, 11, 12); 66 (1 to 9, 11, 12); 67 (1 to 9, 11, 12); 68 (1 to 9, 11, 12); 69 (1 to 9, 11, 12); 71 (1 to 9, 11, 12); 72 (1 to 9, 11, 12)
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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 : 42 (1-6); 43 (1-6); 44 (1-6); 45 (1, 2, 3-4, 5, 6); 46 (1-6); 47 (1-6); 48 (1, 2-3, 4-12); 49 (1-3, 4-5, 6-12); 50 (1-12); 51 (1-3, 5, 7, 9); 52 (supplement-1, 1-12); 53 (1-12); 54 (1-12); 55 (1-4, 6-12); 56 (1-6, 8-12); 57 (1-12); 58 (1-12); 59 (1-12); 60 (1-12); 61 (1-12); 62 (1-9, 11, 12); 63 (1-12); 64 (1-12); 65 (1-12); 66 (1-12); 67 (1-12); 68 (1-11); 96 (12)
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