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Scholars Portal
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Preserved
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2026-03-19
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Preserved : 15 (S1, 1 to 6); 16 (1 to 6); 17 (1 to 6); 18 (1 to 8); 19 (1 to 8); 20 (1 to 8); 21 (1 to 6); 22 (1 to 6); 23 (1 to 6); 24 (1 to 6); 25 (1 to 6); 26 (1 to 6); 27 (1 to 6); 28 (1 to 6); 29 (1 to 6); 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)
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Internet Archive
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Preserved
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2025-08-08
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15
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CLOCKSS Archive
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In Progress
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2026-04-06
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2017, 2018, 2021 to 2023
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LOCKSS Archive
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Preserved
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2026-04-06
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2017 to 2023
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Portico
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Preserved
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2026-04-09
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Preserved : 2017: 2017, 2018: 2018, 2019: 2019, 2020: 2020, 2021: 2021, 2022: 2022, 2023: 2023
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CLOCKSS Archive
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Preserved
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2026-04-06
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2019, 2020
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CLOCKSS Archive
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Preserved
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2026-04-06
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1 to 38
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Portico
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Preserved
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2026-04-09
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Preserved : 1978: 1(1-4), 1979: 2(1-4), 1980: 3(1-4), 1981: 4(1-4), 1983: 5(1-4), 1984: 6(1-4), 1985: 7(1-6), 1986: 8(1-6), 1987: 9(1-6), 1988: 10(1-6), 1989: 11(1-6), 1990: 12(1-6), 1991: 13(1-6), 1992: 14(1-6), 1993: 15(1, S 1, 2-6), 1994: 16(1-6), 1995: 17(1-6), 1996: 18(1-8), 1997: 19(1-8), 1998: 20(1-8), 1999: 21(1-6), 2000: 22(1-6), 2001: 23(1-6), 2002: 24(1-6), 2003: 25(1-6), 2004: 26(1-6), 2005: 27(1-6), 2006: 28(1-6), 2007: 29(1-6), 2008: 30(1-6), 2009: 31(1-6), 2010: 32(1-6), 2011: 33(1-6), 2012: 34(1-6), 2013: 35(1-6), 2014: 36(1-6), 2015: 37(1-6), 2016: 38(1-6)
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Portico
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Preserved
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2026-04-09
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Preserved : 2019: 2019(1)
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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 6); 36 (1 to 6); 37 (1 to 6); 38 (1 to 4, 6)
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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 8); 3 (1 to 6); 19 (1 to 8); 21 (1 to 6); 22 (1 to 6); 23 (1 to 6); 24 (1 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)
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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 8); 3 (1 to 6); 19 (1 to 8); 21 (1 to 6); 22 (1 to 6); 23 (1 to 6); 24 (1 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)
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