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Scholars Portal
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Preserved
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2026-03-19
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Preserved : 20 (1 to 6); 21 (1 to 6); 22 (1 to 6); 23 (1 to 6); 24 (Suppl, 1 to 6); 25 (1 to 6); 26 (1 to 6); 27 (Suppl, 1 to 6); 28 (1 to 6); 29 (Suppl, 1 to 6); 30 (1 to 6); 31 (Suppl, 1 to 6); 32 (Suppl, 1 to 6); 33 (Suppl, 1 to 6); 34 (Suppl, 1 to 6); 35 (Suppl, 1 to 6); 36 (Suppl, 1 to 6); 37 (1 to 6); 38 (Suppl, 1 to 6); 39 (Suppl, 1 to 12); 40 (Suppl, 1 to 12); 41 (Suppl, 1 to 12); 42 (Suppl, 3 to 5, 8 to 12); 43 (Suppl, 1 to 12); 44 (Suppl, 1 to 12); 45 (Suppl, 1 to 12); 46 (Suppl, 1 to 12); 47 (Suppl, 1, 2, 4 to 12); 48 (1)
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Internet Archive
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Preserved
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2025-08-08
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3 to 21
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LOCKSS Archive
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In Progress
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2026-04-06
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35, 42
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LOCKSS Archive
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Preserved
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2026-04-06
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36, 38 to 41
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Portico
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Preserved
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2026-04-02
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Preserved : 1980: 3(1-4), 1981: 4(1-4), 1982: 5(1-6), 1983: 6(1-6), 1984: 7(1-6), 1985/1986: 8(1-6), 1986: 9(1-6), 1987: 10(1-6), 1988: 11(1-6), 1989: 12(1-6), 1990: 13(1-6), 1991: 14(1-6), 1992: 15(1-6), 1993: 16(1-6), 1994: 17(1-6), 1995: 18(1-6), 1996: 19(1-6), 1997: 20(1-6), 1998: 21(1-6), 1999: 22(1-6), 2000: 23(1-6), 2001: 24(1, S 1, 2-6), 2002: 25(1-6), 2003: 26(1-6), 2004: 27(1, S 1, 2-6), 2005: 28(1-6), 2006: 29(1, S 1, 2-6), 2007: 30(1-6), 2008: 31(1-3, S 3, 4-6), 2009: 32(1-2, S 2, 3-6), 2010: 33(1-2, S 2, 3-6), 2011: 34(1-2, S 2, 3, S 3, 4-6), 2012: 35(1, S 1, 2-4), 2013: 36(1-3, S 3, 4-6), 2014: 37(1-6), 2015: 38(1-3, S 3, 4-6), 2016: 39(1-3, S 3, 4-12), 2017: 40(1-2, S 2, 3-12), 2018: 41(1-3, S 3, 4-12), 2018/2019: 42(1-3, S 3, 4-12), 2019/2020: 43(1, S 1, 2, S 2, 3, S 3, 4, S 4, 5-12), 2021: 44(1, S 1, 2, S 2, 3-12), 2022: 45(1, S 1, 2, S 2, 3, S 3, 4, S 4, 5-12), 2023: 46(2, S 2, 3, S 3, 4, S 4, 5, S 5, 6-12), 2024: 47(1, S 1, 2, S 2, 3, S 3, 4, S 4, 5, S 5, 6, S 6, 7, S 7, 8-11), 2025: 48(1)
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Scholars Portal
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Preserved
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2026-03-19
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Preserved : 1 (1 to 4); 2 (1 to 4)
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CLOCKSS Archive
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Preserved
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2026-04-06
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1 to 49
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Portico
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Preserved
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2026-04-02
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Preserved : 1978: 1(1-4), 1979: 2(1-4)
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Scholars Portal
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Preserved
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2026-03-19
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Preserved : 48 (Suppl, 2 to 12); 49 (Suppl, 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 : 2 (1 to 6); 3 (1 to 6); 4 (1 to 9, 11, 12); 21 (1 to 6); 22 (1 to 6); 23 (1 to 6); 24 (1, 3 to 6); 25 (1 to 6); 26 (1 to 6); 27 (1 to 6); 28 (1 to 6); 29 (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 9, 11, 12); 41 (Suppl 1, 1 to 9, 11, 12); 42 (Suppl 1, 1 to 9, 11, 12); 43 (Suppl 2, 1 to 9, 11, 12); 44 (Suppl 2, 1 to 9, 11, 12); 45 (Suppl 3, 1 to 9, 11, 12); 46 (Suppl 3, 1 to 9, 11, 12); 47 (Suppl 3, 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 6); 3 (1 to 6); 4 (1 to 9, 11, 12); 21 (1 to 6); 22 (1 to 6); 23 (1 to 6); 24 (1, 3 to 6); 25 (1 to 6); 26 (1 to 6); 27 (1 to 6); 28 (1 to 6); 29 (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 9, 11, 12); 41 (Suppl 1, 1 to 9, 11, 12); 42 (Suppl 1, 1 to 9, 11, 12); 43 (Suppl 2, 1 to 9, 11, 12); 44 (Suppl 2, 1 to 9, 11, 12); 45 (Suppl 3, 1 to 9, 11, 12); 46 (Suppl 3, 1 to 9, 11, 12); 47 (Suppl 3, 1 to 9, 11, 12)
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National Library of the Netherlands
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Preserved
|
2024-12-15
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Preserved : 19 (1-6); 20 (supplement-1, 5, 6); 21 (1-6); 22 (supplement-2, 1-6); 23 (1-6); 24 (1-6); 25 (S1, 1-6); 26 (1-6); 27 (1-6); 28 (1-6); 29 (1-6); 30 (1-6); 31 (1-6); 32 (1-6); 33 (1-6); 34 (supplement-2, 1-6); 35 (supplement-1, 1-6); 36 (supplement-4, 1-6); 37 (1-6); 38 (1-6); 39 (supplement-1, 1-12); 40 (1-12); 41 (supplement-1, 1-12); 42 (1-12); 106 (6)
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