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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); 2 (1 to 4); 3 (1, 2, 3-4); 4 (1 to 3); 5 (1 to 3); 6 (1, 2/3); 7 (1 to 3); 8 (1 to 3); 9 (1 to 3); 10 (1 to 3); 11 (1 to 3); 12 (1, 2-3); 13 (1, 3); 14 (1, 2-3); 15 (1 to 3); 16 (1 to 3); 17 (1, 2-3); 18 (1, 2-3); 19 (1 to 3); 20 (1 to 3); 21 (1 to 3); 22 (1 to 3); 23 (1 to 3); 24 (1, 2-3); 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 (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 to 3); 61 (1 to 3); 62 (2 to 6); 63 (1 to 6); 64 (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 64
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Portico
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Preserved
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2026-04-09
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Preserved : 1993: 2(4)
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Portico
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Preserved
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2026-04-09
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Preserved : 1997: 8(1-3), 1997: 9(1-3), 1998: 10(1-3), 1998: 11(1-3), 1999: 12(1-3), 1999: 13(1-3), 2000: 14(1-3), 2000: 15(1-3), 2001: 16(1-3), 2001: 17(1-3), 2002: 18(1-3), 2002: 19(1-3), 2003: 20(1-3), 2003: 21(1-3), 2004: 22(1-3), 2004: 23(1-3), 2005: 24(1-3), 2005: 25(1-3), 2006: 26(1-3), 2006: 27(1-3), 2007: 28(1-3), 2007: 29(1-3), 2008: 30(1-3), 2008: 31(1-3), 2009: 32(1-3), 2009: 33(1-3), 2010: 34(1-3), 2010: 35(1-3), 2011: 36(1-3), 2011: 37(1-3), 2012: 38(1-3), 2012: 39(1), 2013: 40(1-3), 2013: 41(2-3), 2014: 42(1-3), 2014: 43(1-3), 2015: 44(2-3), 2015: 45(1-3), 2016: 46(1-3), 2016: 47(1-3), 2017: 48(1-3), 2017: 49(1-3), 2018: 50(1-3), 2018: 51(1-3), 2019: 52(1-3), 2019: 53(1-3), 2018/2019/2020: 54(1-3), 2019/2020: 55(1-3), 2021: 56(1-3), 2021: 57(1-3), 2022: 58(1-3), 2022: 59(1-3), 2023: 60(1-3), 2023: 61(1-3), 2024: 62(1-6), 2025: 63(2-6), 2026: 64(1)
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LOCKSS Archive
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In Progress
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2026-04-06
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38, 39, 52, 53
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LOCKSS Archive
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Preserved
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2026-04-06
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40 to 51
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Library of Congress
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Preserved
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2025-04-07
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50 (2, 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 4)
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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 : 1 (1 to 3); 2 (1 to 3); 3 (1 to 3); 4 (1 to 3); 5 (1 to 3); 6 (1 to 3); 8 (1 to 3); 9 (1 to 3); 11 (1 to 3); 12 (1, 2); 13 (1, 3); 14 (1, 2); 15 (1 to 3); 16 (1 to 3); 17 (1, 2); 18 (1, 2); 19 (1 to 3); 21 (1 to 3); 22 (1 to 3); 23 (1 to 3); 24 (1, 2); 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); 61 (1 to 3); 62 (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 : 1 (1 to 3); 2 (1 to 3); 3 (1 to 3); 4 (1 to 3); 5 (1 to 3); 6 (1 to 3); 8 (1 to 3); 9 (1 to 3); 11 (1 to 3); 12 (1, 2); 13 (1, 3); 14 (1, 2); 15 (1 to 3); 16 (1 to 3); 17 (1, 2); 18 (1, 2); 19 (1 to 3); 21 (1 to 3); 22 (1 to 3); 23 (1 to 3); 24 (1, 2); 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); 61 (1 to 3); 62 (1 to 6)
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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 : 8 (3); 9 (1-3); 10 (1-3); 11 (1-3); 12 (1, 2); 13 (1, 3); 14 (2-3); 15 (1-3); 16 (1); 17 (2); 18 (1, 2); 19 (1-3); 20 (1, 2); 21 (1, 2); 22 (1, 3); 23; 25 (1-3); 26 (1-3); 27 (1, 3); 28; 29 (1-3); 30 (1, 3); 31 (1-3); 32 (1-3); 33 (1-3); 34 (1, 3); 35 (1, 2); 36 (1, 3); 37 (1-3); 38 (1-3); 39 (1-3); 40 (2, 3); 41 (1-3); 42 (1-3); 43 (1, 2); 44 (1-3); 45 (1, 2); 46 (1-3); 47 (1-3); 48 (1-3); 49 (1-3); 50 (1-3); 51 (1-3); 52 (1-3); 53 (1, 2)
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