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Scholars Portal
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Preserved
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2026-03-19
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Preserved : 1 (2 to 6); 2 (1 to 6); 3 (1-4); 4 (2, 3-4); 5 (1-2, 3-4); 6 (1-2, 3, 4); 7 (1 to 4); 8 (1 to 4); 9 (1 to 4); 10 (1, 2-3, 4); 11 (1 to 3); 12 (1 to 3); 13 (1 to 3); 14 (1 to 3); 15 (1 to 3); 16 (1 to 3); 17 (1-3); 18; 19; 20; 21 (2, 3); 22 (1-2, 3); 23 (1 to 3); 24 (1-3); 25; 26; 27 (3); 28 (1, 2-3); 29 (1-2, 3); 30 (1, 2-3); 31 (1, 2-3); 32 (1 to 3); 33 (1, 2-3); 34 (1 to 3); 35 (1-2, 3); 36 (1-2, 3); 37 (1 to 3); 38 (1-2, 3); 39 (1 to 3); 40 (1, 2-3); 41 (1-2, 3); 42 (1 to 3); 43 (1 to 3); 44 (1 to 3); 45 (1 to 3); 46 (1 to 3); 47 (1-2, 3); 48 (1, 2-3); 49 (1-2, 3); 50 (1, 2-3); 51 (1 to 3); 52 (1-2, 3); 53 (1 to 3); 54 (1, 2-3); 55 (1 to 3); 56 (1, 2-3); 57 (1 to 3); 58 (1 to 3); 59 (1 to 3); 60 (1 to 3); 61 (1, 2)
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Internet Archive
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Preserved
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2025-08-08
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1 to 6
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Portico
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Preserved
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2026-04-09
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Preserved : 1989/1990: 1(1-6), 1991/1992: 2(1-6), 1994: 3(1-4), 1993/1994: 4(1-4), 1994: 5(1-4), 1995: 6(1-4)
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LOCKSS Archive
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Preserved
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2026-04-06
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1 to 28
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CLOCKSS Archive
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Preserved
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2026-04-06
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1 to 25, 27 to 61
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Portico
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Preserved
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2026-04-09
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Preserved : 2001: 12(1-3), 2002: 13(1-3), 2002: 14(1-3), 2003: 15(1-3), 2003: 16(1-3)
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Portico
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Preserved
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2026-04-09
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Preserved : 2004: 18(1-3)
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Portico
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Preserved
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2026-04-09
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Preserved : 2009: 23(1, 3)
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Portico
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Preserved
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2026-04-09
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Preserved : 2013: 35(1-3), 2013: 36(3), 2014: 37(1-3), 2014: 38(1-2), 2015: 39(1-3), 2015: 40(1-3), 2016: 41(1-3), 2016: 42(1-3), 2017: 43(1-3), 2017: 44(1-3), 2018: 45(1-3), 2018: 46(1-3), 2019: 47(1-3), 2019: 48(1-3), 2020: 49(1-3), 2020: 50(1-3), 2021: 51(1-3), 2021: 52(1-3), 2022: 53(1-3), 2022: 54(1-3), 2023: 55(1-3), 2023: 56(1-3), 2024: 57(1-3), 2024: 58(1-3), 2025: 59(1-3), 2025: 60(1-3), 2026: 61(1-2)
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Library of Congress
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Preserved
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2025-04-07
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44 (2); 45 (1 to 3); 46 (1 to 3); 47 (1-2, 3); 48 (1, 2-3); 49 (1-2, 3); 50 (1, 2-3); 51 (1 to 3); 52 (1-2, 3); 53 (1 to 3); 54 (1, 2-3); 55 (1 to 3); 56 (1, 2-3); 57 (1 to 3); 58 (1 to 3)
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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, 2, 4); 2 (1); 3 (2); 4 (1, 2); 5 (1, 2-3); 7 (1 to 4); 8 (1 to 4); 9 (1 to 4); 11 (1, 2); 12 (1 to 3); 13 (1 to 3); 14 (1 to 3); 15 (1 to 3); 16 (1 to 3); 17 (1); 18; 19; 21 (2, 3); 22 (1, 3); 23 (1 to 3); 24 (1); 25; 26; 27 (3); 28 (1, 2); 29 (1, 3); 31 (1, 2); 32 (1 to 3); 33 (1, 2); 34 (1 to 3); 35 (1, 3); 36 (1, 3); 37 (1 to 3); 38 (1, 3); 39 (1 to 3); 41 (1, 3); 42 (1 to 3); 43 (1 to 3); 44 (1 to 3); 45 (1 to 3); 46 (1 to 3); 47 (1-2, 3); 48 (1, 2-3); 49 (1-2, 3); 51 (1 to 3); 52 (1-2, 3); 53 (1 to 3); 54 (1, 2-3); 55 (1 to 3); 56 (1, 2-3); 57 (1 to 3); 58 (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 : 1 (1, 2, 4); 2 (1); 3 (2); 4 (1, 2); 5 (1, 2-3); 7 (1 to 4); 8 (1 to 4); 9 (1 to 4); 11 (1, 2); 12 (1 to 3); 13 (1 to 3); 14 (1 to 3); 15 (1 to 3); 16 (1 to 3); 17 (1); 18; 19; 21 (2, 3); 22 (1, 3); 23 (1 to 3); 24 (1); 25; 26; 27 (3); 28 (1, 2); 29 (1, 3); 31 (1, 2); 32 (1 to 3); 33 (1, 2); 34 (1 to 3); 35 (1, 3); 36 (1, 3); 37 (1 to 3); 38 (1, 3); 39 (1 to 3); 41 (1, 3); 42 (1 to 3); 43 (1 to 3); 44 (1 to 3); 45 (1 to 3); 46 (1 to 3); 47 (1-2, 3); 48 (1, 2-3); 49 (1-2, 3); 51 (1 to 3); 52 (1-2, 3); 53 (1 to 3); 54 (1, 2-3); 55 (1 to 3); 56 (1, 2-3); 57 (1 to 3); 58 (1 to 3)
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National Library of the Netherlands
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Preserved
|
2024-12-15
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Preserved : 7 (1-4); 8 (1-4); 9 (1-4); 10 (1, 2, 4); 11 (2, 3); 12 (1-3); 13 (1-3); 14 (1-3); 15 (1-3); 16 (2, 3); 17 (1-3); 18; 19; 20; 21 (2, 3); 22 (1-2); 23 (2, 3); 25 (1-3); 26; 27 (3); 28 (1, 2-3); 29 (1-2, 3); 30 (1, 2-3); 31 (1, 2-3); 32 (1, 2); 33 (1, 2-3); 34 (1-3); 35 (1-2, 3); 36 (1-2, 3); 37 (1-3); 38 (1-2, 3); 39 (1-3); 40 (1, 2-3); 41 (1-2, 3); 42 (1-3); 43 (1-3); 44 (1-3); 45 (1-3); 46 (1-3); 47 (1-2, 3); 48 (1)
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