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Scholars Portal
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Preserved
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2026-03-19
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Preserved : 10 (1 to 6); 11 (1 to 6); 12 (1 to 6); 13 (1 to 6); 14 (1 to 6); 15 (Suppl, 1 to 6); 16 (1 to 6); 17 (1 to 6); 18 (1 to 12); 19 (1 to 12); 20 (1 to 15); 21 (1 to 15); 22 (Suppl, 1 to 12); 23 (1 to 12); 24 (1 to 12); 25 (1 to 12); 26 (1 to 12); 27 (1 to 12); 28 (1 to 12); 29 (1 to 12); 30 (1 to 12); 31 (1 to 12); 32 (1 to 12); 33 (1 to 12); 34 (1 to 12); 35 (1 to 12); 36 (1 to 12); 37 (1 to 12); 38 (1 to 12); 39 (1 to 12); 40 (1 to 12); 41 (1, 2, 4 to 12); 42 (1 to 12); 43 (1 to 3)
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LOCKSS Archive
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In Progress
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2026-04-27
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1 to 37
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Portico
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Preserved
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2026-04-23
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Preserved : 1991: 1(2, 6), 1992: 2(1-2), 1993: 3(2, 5-6), 1994: 4(2-3, 5), 1994: 5(2-3, 6), 1995: 6(2, 5), 1995: 7(4), 1996: 8(1, 4, 6), 1996: 9(1-3, 6), 1997: 10(1-6), 1997: 11(1-6), 1998: 12(1-6), 1998: 13(1-6), 1999: 14(1-6), 1999: 15(1, S 1, 2-6), 2000: 16(1-6), 2000: 17(1-6), 2001: 18(1-12), 2002: 19(1-12), 2003: 20(1-15), 2004: 21(1-15), 2005/2012: 22(1, S 1, 2-12), 2006: 23(1-12), 2007: 24(1-12), 2008: 25(1-12), 2009/2012: 26(1-12), 2010: 27(1-12), 2011: 28(1-12), 2012: 29(1-12), 2013: 30(1-12), 2014: 31(1-12), 2015: 32(1-12), 2016: 33(1-12), 2017: 34(1-12), 2018: 35(1-12), 2019: 36(1-12), 2019/2020: 37(1-12), 2021: 38(1-9, 11-12), 2022: 39(1-12), 2023: 40(1-12), 2024: 41(1-12), 2025: 42(1-2, 4-8, 10-12), 2026: 43(1-4)
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CLOCKSS Archive
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Preserved
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2026-04-27
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10 to 43
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Library of Congress
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Preserved
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2025-04-07
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35 (1 to 12); 36 (1, S1, 2 to 12); 37 (1 to 12); 38 (1 to 8, 10 to 12); 39 (1 to 12); 40 (1 to 12); 41 (1 to 10, 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 : 13 (1); 19 (3, 5); 25 (8); 27 (7, 8, 12); 28 (1, 3-5); 29 (1-12); 30 (1-12); 31 (1-12); 32 (1-12); 33 (1-12); 34 (1-12); 35 (1-12); 36 (supplement-1, 1-11)
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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 : 41 (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 : 41 (1 to 9, 11, 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 : 31 (11)
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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 : 31 (11)
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