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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 53 (1 to 6); 54 (, 1 to 6); 55 (, 1 to 6); 56 (, 1 to 6); 57 (, 1 to 6); 58 (, 1 to 6); 59 (, 1 to 6); 60 (, 1 to 6); 61 (, 1 to 15); 62 (, 1 to 18); 63 (, 1 to 24); 64 (, 1 to 24); 65 (, 1 to 18); 66 (, 1 to 18); 67 (, 1 to 18); 68 (, 1 to 18); 69 (, 1 to 18); 70 (, 1 to 18); 71 (, 1 to 18); 72 (, 1 to 18); 73 (, 1 to 18); 74 (, 1 to 18); 75 (, 1 to 18); 76 (, 1 to 18); 77 (, 1 to 18); 78 (, 1 to 18); 79 (, 1 to 18); 80 (, 1 to 18); 81 (, 1 to 18); 82 (, 1 to 18); 83 (, 1 to 18); 84 (, 1 to 12); 85 (, 1 to 7); 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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1 to 9
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Portico
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Preserved
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2026-02-12
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Preserved : 1971: 1(5), 1971: 2(1)
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LOCKSS Archive
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In Progress
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2026-02-09
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1 to 80
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Portico
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Preserved
|
2026-02-12
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Preserved : 1972: 4(1-2)
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Portico
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Preserved
|
2026-02-12
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Preserved : 1973: 6(3), 1974: 7(1-2), 1974: 8(1, 5), 1975: 9(4), 1975: 10(2)
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Portico
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Preserved
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2026-02-12
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Preserved : 1977: 13(4, 6), 1977: 14(1-3), 1978: 15(4, 6), 1978: 16(2)
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Portico
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Preserved
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2026-02-12
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Preserved : 1979: 18(5)
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Portico
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Preserved
|
2026-02-12
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Preserved : 1981: 22(2, 4), 1982: 23(1-2, 5)
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Portico
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Preserved
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2026-02-12
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Preserved : 1983: 26(1, 3-5), 1984: 27(4), 1984: 28(3), 1985: 29(S 5), 1985: 30(1, 4, 6), 1986: 31(S 1, S 3, S 4, 5), 1986: 32(S 4, 5), 1987: 33(4), 1987: 34(1, 3, 6), 1988: 35(S 1, 2, S 2, 4, S 6), 1988: 36(S 1, 2-3, S 4, S 6), 1989: 37(1-2, S 2, 3, 5), 1989: 38(1, S 2, 3-6), 1990: 39(4-6), 1990: 40(1, 3, S 3, 6), 1991: 41(1-3, 5-6), 1991: 42(1, S 1, 2-6), 1992: 43(1, 4-5), 1992: 44(3-6), 1993: 45(1-4, 6), 1993: 46(1-2, S 2, 3-6), 1994: 47(1, 3, S 3, 6, S 6), 1994: 48(2-6), 1995: 49(1, S 1, 2, S 2, 4, 6), 1995: 50(1-6), 1996: 51(1-6), 1996: 52(2-3, 5-6), 1997: 53(1-6), 1997: 54(1, S 1, 2-6), 1998: 55(1-6), 1998: 56(1-6), 1999: 57(1-6), 1999: 58(1-6), 2000: 59(1-6), 2000: 60(1, S 1, 2-6), 2001: 61(1-15)
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CLOCKSS Archive
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Preserved
|
2026-02-09
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53 to 86
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Portico
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Preserved
|
2026-02-12
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Preserved : 2002/2012: 62(1, S 1, 2-18), 2003: 63(1-24), 2004/2012: 64(1, S 1, 2-24), 2005: 65(1-18), 2006: 66(1-18), 2007: 67(1-18), 2008/2012: 68(1-18), 2009/2012: 69(1, S 1, 2-18), 2010: 70(1, S 1, 2-18), 2011: 71(1-18), 2012: 72(1-18), 2013: 73(1-18), 2014: 74(1-18), 2015: 75(1-18), 2016: 76(1-18), 2017: 77(1-18), 2018: 78(1-18), 2019: 79(1-18), 2020: 80(1-18), 2021: 81(1-18), 2022: 82(1-18), 2023: 83(1-18), 2024: 84(1-10), 2025: 85(1-3, 5-12), 2026: 86(1-2)
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National Library of the Netherlands
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Preserved
|
2024-12-15
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Preserved : 14 (10); 41 (4); 53 (1, 3, 5); 54 (1-3, 5, 6); 55 (4, 6); 56 (1); 62 (2, 13); 63 (16, 23); 67 (16); 68 (9, 17); 69 (5, 10, 12, 13); 70 (supplement-2, 8, 12, 15, 18); 71 (1-3, 5, 6, 10, 12-15, 18); 72 (supplement-1, 1-3, 5-18); 73 (1-13, 15-18); 74 (1-18); 75 (1-18); 76 (1-18); 77 (1-18); 78 (1-18); 79 (supplement-1, 1-9, 11, 13-16)
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Library of Congress
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Preserved
|
2025-04-07
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77 (1 to 18); 78 (1, 3 to 18); 79 (S1, 1 to 18); 80 (1 to 18); 81 (1 to 18); 82 (1 to 18); 83 (1 to 18); 84 (1 to 10)
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National Digital Preservation Program, China
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Preserved
|
2025-10-23
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Preserved : 84 (1 to 9, 11, 12)
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National Digital Preservation Program, China
|
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Preserved
|
2025-12-04
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Preserved : 84 (1 to 9, 11, 12)
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