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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); 3 (1 to 4); 4 (1); 5 (2 to 4); 6 (1); 7; 8; 9 (2 to 4); 10 (1); 11; 12; 13; 14; 15; 16; 17 (2, 3); 18 (1, 2); 19 (1 to 3); 20 (1, 2); 21 (1 to 4); 22 (1, 2-4); 23 (1-2, 3-4); 24 (1-3, 4); 25 (1, 2-3, 4, 23); 26 (1-3, 4); 27 (1-2, 3, 4); 28 (1-3, 4); 29 (1 to 4); 30 (1 to 4); 31 (1 to 4); 32 (1 to 4); 33 (1, 2, 3-4); 34 (1-2, 3-4); 35 (1 to 4); 36 (1 to 4); 37 (1 to 4); 38 (1 to 4); 39 (1, 2, 3-4); 40 (1 to 4); 41 (1 to 4); 42 (1 to 4); 43 (1 to 4); 44 (1 to 4); 45 (1 to 4); 46 (1 to 4); 47 (1 to 4); 48 (1 to 4); 49 (1 to 10); 50 (1 to 10); 51 (1 to 10); 52 (1 to 10); 53 (1 to 10); 54 (1 to 10); 55 (1 to 10); 56 (1 to 10); 57 (1 to 10); 58 (1 to 10); 59 (1 to 10); 60 (1 to 10); 61 (1 to 10); 62 (2 to 10); 63 (1 to 10); 64 (1 to 3)
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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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2026-04-02
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Preserved : 1987: 1(1-4), 1988: 2(1-4), 1989: 3(1-4), 1990: 4(1), 1990: 5(1-4), 1991: 6(1), 1991: 7(1), 1991: 8(1), 1992: 9(1-4), 1992: 10(1), 1992: 11(1), 1993: 12(1), 1993: 13(1), 1993: 14(1), 1994: 15(1), 1994: 16(1), 1995: 17(1-3), 1995: 18(1-2)
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Portico
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Preserved
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2026-04-02
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Preserved : 1996: 19(1-3), 1996: 20(1-2), 1997: 21(1, 4), 1997: 22(1-4), 1998: 23(1-4), 1999: 25(2-3)
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Portico
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Preserved
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2026-04-02
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Preserved : 2000: 27(1-2)
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Portico
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Preserved
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2026-04-02
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Preserved : 2004: 36(3-4)
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Portico
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Preserved
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2026-04-02
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Preserved : 2005: 38(4)
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Portico
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Preserved
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2026-04-02
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Preserved : 2007: 41(4), 2007: 42(2-3), 2008: 43(3), 2008: 44(2-4), 2009: 45(1-4), 2009: 46(1-4), 2010: 47(2-4), 2010: 48(1-4), 2011: 49(1-10), 2012: 50(1-2, 4-6, 10), 2013: 51(1-9), 2014: 52(1-9), 2015: 53(4-10), 2016: 54(1-10), 2017: 55(1-10), 2018: 56(1-10), 2019: 57(1-10), 2019/2020: 58(1-10), 2021: 59(1-10), 2022: 60(1-10), 2023: 61(1-10), 2024: 62(1-10), 2025: 63(1-3, 5-10), 2025/2026: 64(1-3)
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LOCKSS Archive
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In Progress
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2026-04-06
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50, 57
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LOCKSS Archive
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Preserved
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2026-04-06
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51 to 56
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Library of Congress
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Preserved
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2025-04-07
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56 (3 to 10); 57 (1 to 10); 58 (1 to 10); 59 (1 to 10); 60 (1 to 10); 61 (1 to 10); 62 (1 to 9)
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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 : 3 (1 to 4); 4 (1 to 4); 5 (1 to 9); 6 (1 to 9); 21 (1 to 4); 22 (1, 2); 23 (1, 3); 24 (1, 4); 25 (1, 2, 4, 23); 26 (1, 4); 27 (1, 3, 4); 28 (1, 4); 29 (1 to 4); 31 (1 to 4); 32 (1 to 4); 33 (1 to 3); 34 (1, 3); 35 (1 to 4); 36 (1 to 4); 37 (1 to 4); 38 (1 to 4); 39 (1 to 3); 41 (1 to 4); 42 (1 to 4); 43 (1 to 4); 44 (1 to 4); 45 (1 to 4); 46 (1 to 4); 47 (1 to 4); 48 (1 to 4); 49 (1 to 9); 51 (1 to 9); 52 (1 to 9); 53 (1 to 9); 54 (1 to 9); 55 (1 to 9); 56 (1 to 9); 57 (1 to 9); 58 (1 to 9); 59 (1 to 9); 61 (1 to 9); 62 (1 to 9)
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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 : 3 (1 to 4); 4 (1 to 4); 5 (1 to 9); 6 (1 to 9); 21 (1 to 4); 22 (1, 2); 23 (1, 3); 24 (1, 4); 25 (1, 2, 4, 23); 26 (1, 4); 27 (1, 3, 4); 28 (1, 4); 29 (1 to 4); 31 (1 to 4); 32 (1 to 4); 33 (1 to 3); 34 (1, 3); 35 (1 to 4); 36 (1 to 4); 37 (1 to 4); 38 (1 to 4); 39 (1 to 3); 41 (1 to 4); 42 (1 to 4); 43 (1 to 4); 44 (1 to 4); 45 (1 to 4); 46 (1 to 4); 47 (1 to 4); 48 (1 to 4); 49 (1 to 9); 51 (1 to 9); 52 (1 to 9); 53 (1 to 9); 54 (1 to 9); 55 (1 to 9); 56 (1 to 9); 57 (1 to 9); 58 (1 to 9); 59 (1 to 9); 61 (1 to 9); 62 (1 to 9)
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National Library of the Netherlands
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Preserved
|
2024-12-15
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Preserved : 21 (1-4); 22 (1, 2); 23 (1, 3); 24 (1, 4); 25 (1, 2, 4, 23); 26 (1, 4); 29 (1-4); 30 (1-4); 31 (1-4); 32 (1-4); 33 (1-3); 34 (1, 3); 35 (1-3); 36 (1-4); 37 (1-4); 38 (2-4); 39 (1, 2, 3-4); 40 (1-4); 41 (1, 2); 42 (1-4); 43 (1-4); 44 (1-4); 45 (1-4); 46 (1-4); 47 (1-4); 48 (1-4); 49 (1-4, 6-10); 50 (1-10); 51 (1-10); 52 (1-10); 53 (1-10); 54 (1-10); 55 (1-10); 56 (1-10); 57 (1-10)
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