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Scholars Portal
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Preserved
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2026-03-19
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Preserved : 21 (2); 22 (1, 2); 23 (1, 2); 24 (1, 2); 25 (1, 2); 26 (1, 2); 27 (1, 2); 28 (1, 2); 29 (1, 2); 30 (1, 2); 31 (1, 2); 32 (1-2); 33 (2); 34 (1, 3-4); 35 (1-2, 3, 4); 36 (1 to 4); 37 (1 to 4); 38 (1 to 4); 39 (1 to 4); 40 (1 to 4); 41 (1 to 4); 42 (1 to 4); 43 (1 to 4); 44 (1 to 6); 45 (1 to 6); 46 (1 to 4, 6); 47 (1 to 6); 48 (1 to 5); 49 (1, 3 to 6); 50 (1 to 6); 51 (1)
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LOCKSS Archive
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In Progress
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2026-04-06
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37, 44
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LOCKSS Archive
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Preserved
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2026-04-06
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38 to 43
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Internet Archive
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Preserved
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2025-08-08
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7 to 35
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Portico
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Preserved
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2026-04-09
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Preserved : 1975/1976: 1(1-2), 1977: 2(1-2), 1978: 3(1), 1979: 4(1-2), 1980: 5(1-2), 1981: 6(1-2), 1982: 7(1-2), 1983/1984: 8(1-2), 1984/1985: 9(1-2), 1985/1986: 10(1-2), 1986/1987: 11(1-2), 1987/1988: 12(1-2), 1988/1989: 13(1-2), 1989/1990: 14(1-2), 1990/1991: 15(1-2), 1991: 16(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 51
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Portico
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Preserved
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2026-04-09
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Preserved : 1993: 17(1-2), 1994: 18(1-2), 1994/1995: 19(1-2), 1995/1996: 20(1-2), 1996/1997: 21(1-2), 1997/1998: 22(1-2), 1998/1999: 23(1-2), 1999/2000: 24(1-2), 2000/2001: 25(1-2), 2001/2002: 26(1-2), 2002/2003: 27(1-2), 2003/2004: 28(1-2), 2004/2005: 29(1-2), 2005/2006: 30(1-2), 2006/2007: 31(1-2), 2007: 32(1-2), 2008: 33(1-2), 2009: 34(1-4), 2010: 35(1-4), 2011: 36(1-4), 2012: 37(1-4), 2013: 38(1-4), 2014: 39(1-4), 2015: 40(1-4), 2016: 41(1-4), 2017: 42(1-4), 2018: 43(1-4), 2019: 44(1-6), 2019/2020: 45(1-6), 2021: 46(1-6), 2022: 47(1-6), 2023: 48(1-6), 2024: 49(1-5), 2025: 50(1-6), 2026: 51(1)
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Library of Congress
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Preserved
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2025-04-07
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43 (1 to 4); 44 (1 to 6); 45 (1 to 6); 46 (1 to 4, 6); 47 (1 to 6); 48 (1 to 6); 49 (1 to 5)
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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, 2); 4 (1 to 4); 21 (2); 22 (1, 2); 23 (1, 2); 24 (1, 2); 25 (1, 2); 26 (1, 2); 27 (1, 2); 28 (1, 2); 29 (1, 2); 31 (1, 2); 32 (1); 33 (2); 34 (1, 3); 35 (1, 3, 4); 36 (1 to 4); 37 (1 to 4); 38 (1 to 4); 39 (1 to 4); 41 (1 to 4); 42 (1 to 4); 43 (1 to 4); 44 (1 to 6); 45 (1 to 6); 46 (1 to 6); 47 (1 to 6); 48 (1 to 6); 49 (1 to 6)
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National Digital Preservation Program, China
|
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Preserved
|
2025-12-04
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Preserved : 3 (1, 2); 4 (1 to 4); 21 (2); 22 (1, 2); 23 (1, 2); 24 (1, 2); 25 (1, 2); 26 (1, 2); 27 (1, 2); 28 (1, 2); 29 (1, 2); 31 (1, 2); 32 (1); 33 (2); 34 (1, 3); 35 (1, 3, 4); 36 (1 to 4); 37 (1 to 4); 38 (1 to 4); 39 (1 to 4); 41 (1 to 4); 42 (1 to 4); 43 (1 to 4); 44 (1 to 6); 45 (1 to 6); 46 (1 to 6); 47 (1 to 6); 48 (1 to 6); 49 (1 to 6)
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National Library of the Netherlands
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Preserved
|
2024-12-15
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|
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Preserved : 23 (2); 24; 33 (1, 2); 34 (1-2, 3-4); 35 (1-2, 3, 4); 36 (1-4); 37 (1-4); 38 (1-4); 39 (1-4); 40 (1-4); 41 (1-4); 42 (1-4); 43 (1-4, 7); 44 (1-6); 71 (7)
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