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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); 2; 3; 4; 5; 6 (2 to 4); 7 (1); 8 (2 to 4); 9 (1, 2-3, 4); 10 (1 to 4); 11 (1 to 4); 12 (1 to 4); 13 (1 to 4); 14 (1 to 4); 15 (1 to 4); 16 (1 to 4); 17 (1 to 4); 18 (1 to 4); 19 (2 to 4); 20 (1 to 4); 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 3); 29 (1 to 3); 30 (1 to 3); 31 (1 to 3); 32 (1 to 3); 33 (1 to 3); 34 (1 to 3); 35 (1 to 3); 36 (1 to 3); 37 (1 to 3); 38 (1 to 3); 39 (1 to 3); 40 (1 to 3); 41 (1 to 3); 42 (1 to 3); 43 (1 to 3); 44 (1 to 3); 45 (1 to 3); 46 (1 to 3); 47 (1 to 3); 48 (1 to 3); 49 (2); 50 (3); 51 (1 to 3); 52 (1 to 3); 53 (1 to 3); 54 (1 to 3); 55 (1 to 3); 56 (1 to 3); 57 (1 to 3); 58 (1 to 3); 59 (1 to 3); 60 (1 to 3); 61 (1 to 3); 62 (1 to 3); 63 (1)
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CLOCKSS Archive
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Preserved
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2026-04-06
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1 to 63
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Portico
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Preserved
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2026-04-09
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Preserved : 1985: 1(1), 1986: 2(1), 1987: 3(1), 1988: 4(1), 1989: 5(1), 1990: 6(1-4), 1991: 7(1), 1992: 8(1-4), 1993: 9(1-4), 1994: 10(1-4), 1995: 11(1-4), 1996: 12(1-4), 1997: 13(1-4), 1998: 14(1-4), 1999: 15(1-4), 2000: 16(1-4), 2001: 17(1-4), 2001/2002: 18(1-4), 2003: 19(1-4), 2003/2004: 20(1-4), 2004/2005: 21(1-3), 2005: 22(1-3), 2005/2006: 23(1-3), 2006: 24(1-3), 2007: 25(1-3), 2007: 26(1-3), 2008: 27(1-3), 2008: 28(1-3), 2009: 29(1-3), 2009: 30(1-3), 2010: 31(1-3), 2010: 32(1-3), 2011: 33(1-3), 2011: 34(1-3), 2012: 35(1-3), 2012: 36(1-3), 2013: 37(1-3), 2013: 38(1-3), 2014: 39(1-3), 2014: 40(1-3), 2015: 41(2-3), 2015: 42(1-3), 2016: 43(1-3), 2016: 44(1-3), 2017: 45(1-3), 2017: 46(1-3), 2018: 47(1-3), 2018: 48(1-3), 2019: 49(1-3), 2019: 50(1-3), 2018/2019: 51(1-3), 2019/2020: 52(1-3), 2021: 53(1-3), 2021: 54(1-3), 2022: 55(1-3), 2022: 56(1-3), 2023: 57(1-3), 2023: 58(1-3), 2024: 59(1-3), 2024: 60(1-2), 2025: 61(1-3), 2025: 62(1-3), 2026: 63(1)
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LOCKSS Archive
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In Progress
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2026-04-06
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35, 36, 49
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LOCKSS Archive
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Preserved
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2026-04-06
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37 to 48, 50
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Library of Congress
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Preserved
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2025-04-07
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47 (2, 3); 48 (1 to 3); 49 (1 to 3); 50 (1 to 3); 51 (1 to 3); 52 (1 to 3); 53 (1 to 3); 54 (1 to 3); 55 (1 to 3); 56 (1 to 3); 57 (1 to 3); 58 (1 to 3); 59 (1 to 3); 60 (1, 2)
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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 4); 3 (1 to 3); 4 (1 to 3); 5 (1 to 3); 6 (1 to 3); 13 (1 to 4); 14 (1 to 4); 15 (1 to 4); 16 (1 to 4); 17 (1 to 4); 18 (1 to 4); 19 (1 to 4); 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 3); 29 (1 to 3); 31 (1 to 3); 32 (1 to 3); 33 (1 to 3); 34 (1 to 3); 35 (1 to 3); 36 (1 to 3); 37 (1 to 3); 38 (1 to 3); 39 (1 to 3); 41 (1 to 3); 42 (1 to 3); 43 (1 to 3); 44 (1 to 3); 45 (1 to 3); 46 (1 to 3); 47 (1 to 3); 48 (1 to 3); 49 (1 to 3); 51 (1 to 3); 52 (1 to 3); 53 (1 to 3); 54 (1 to 3); 55 (1 to 3); 56 (1 to 3); 57 (1 to 3); 58 (1 to 3); 59 (1 to 3)
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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 4); 3 (1 to 3); 4 (1 to 3); 5 (1 to 3); 6 (1 to 3); 13 (1 to 4); 14 (1 to 4); 15 (1 to 4); 16 (1 to 4); 17 (1 to 4); 18 (1 to 4); 19 (1 to 4); 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 3); 29 (1 to 3); 31 (1 to 3); 32 (1 to 3); 33 (1 to 3); 34 (1 to 3); 35 (1 to 3); 36 (1 to 3); 37 (1 to 3); 38 (1 to 3); 39 (1 to 3); 41 (1 to 3); 42 (1 to 3); 43 (1 to 3); 44 (1 to 3); 45 (1 to 3); 46 (1 to 3); 47 (1 to 3); 48 (1 to 3); 49 (1 to 3); 51 (1 to 3); 52 (1 to 3); 53 (1 to 3); 54 (1 to 3); 55 (1 to 3); 56 (1 to 3); 57 (1 to 3); 58 (1 to 3); 59 (1 to 3)
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