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Internet Archive
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Preserved
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2025-08-08
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12 to 40
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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 (1-2, 3, 4); 4 (1 to 4); 5 (1 to 4); 6 (1 to 4); 7 (1 to 4); 8 (1 to 4); 9 (1 to 4); 10 (1 to 4); 11 (1 to 4); 12 (1 to 4); 13 (1 to 4); 14 (1 to 4); 15 (1, 2, 3-4); 16 (1-4); 17 (2, 3-4); 18 (1 to 4); 19 (1 to 4); 20 (1 to 4); 21 (1 to 4); 22 (1 to 4); 23 (1 to 4); 24 (1 to 4); 25 (1 to 4); 26 (1-2, 3, 4); 27 (1 to 4); 28 (3, 4); 29 (1, 2, 3-4); 30 (1-2, 3, 4); 31 (1-4); 32 (2, 3-4); 33 (1-2, 3-4); 34 (1, 2, 3-4); 35 (1, 2, 3-4); 36 (1 to 4); 37 (1-3, 4); 38 (1-2, 3, 4); 39 (1-2, 3, 4); 40 (1 to 4); 41 (1 to 4); 42 (1 to 4); 43 (1-3, 4); 44 (1 to 4); 45 (1, 2-3, 4); 46 (1-2, 3, 4); 47 (1 to 4); 48 (1 to 4); 49 (1 to 4); 50 (1 to 4); 51 (1 to 4); 54 (3, 5); 56 (1-2, 3 to 6); 57 (3); 58 (1 to 8); 59 (1 to 12); 60 (1 to 10, 11-12); 61 (1 to 3, 5 to 12); 62 (1 to 12); 63 (1 to 9, 11, 12); 64 (1 to 3, 7 to 12); 65 (1 to 12); 66 (1 to 12); 67 (1 to 12); 68 (1 to 12); 69 (1 to 16); 70 (1 to 22); 71 (1 to 18); 72 (1 to 4, 7 to 18); 73 (1 to 18); 74 (1, 2)
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Portico
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Preserved
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2026-04-09
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Preserved : 1979: 8(1-2), 1980: 9(1-2), 1981: 10(1-2), 1982: 11(1-2), 1982: 12(1-2), 1983: 13(1-2), 1983: 14(1-4), 1984: 15(1-2), 1985: 17(1-2), 1985: 18(1-4), 1986: 19(1-4), 1986/1987: 20(1-4), 1987: 21(1-4), 1987/1988: 22(1-4), 1988: 23(1-4), 1988/1989: 24(1-4), 1989: 25(1-4), 1990: 26(3-4), 1990: 27(1-4), 1990/1991: 28(3-4), 1991: 29(1-2), 1991: 30(3-4), 1992: 32(1-2), 1992: 33(3-4), 1993: 34(1-2), 1993: 35(1-2), 1993/1994: 36(1-4), 1994: 37(4), 1995: 38(3-4), 1995: 39(1-4), 1995/1996: 40(1-4), 1996: 41(1-4), 1997: 42(1-4), 1997/1998: 43(1-4), 1998: 44(1-4), 1998/1999: 45(1-4), 1999: 46(1-4), 2000: 47(1-4), 2000/2001: 48(1-4), 2001: 49(1-4), 2002: 50(1-4), 2003: 51(1-4), 2004: 52(1-6), 2005: 53(1-6), 2006: 54(1-6), 2007: 55(1-6), 2006/2007/2008: 56(1-6), 2009: 57(1-6), 2010: 58(1-8), 2011: 59(1-12), 2012: 60(1-12), 2013: 61(1-12), 2014: 62(1-12), 2015: 63(1-12), 2016: 64(1-12), 2017: 65(1-12), 2018: 66(1-12), 2019: 67(1-12), 2020: 68(1-12), 2021: 69(1-16), 2022: 70(1-22), 2023: 71(1-18), 2024: 72(1-18), 2025: 73(1-18), 2026: 74(1-6)
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LOCKSS Archive
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Preserved
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2026-04-06
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1 to 72
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CLOCKSS Archive
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Preserved
|
2026-04-06
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ahead-of-print to 73
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|
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LOCKSS Archive
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In Progress
|
2026-04-06
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73, 74
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|
|
National Library of the Netherlands
|
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Preserved
|
2024-12-15
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Preserved : 1 (1-4); 2 (1-4); 3 (1-2, 3, 4); 4 (1-4); 5 (1-4); 6 (1-4); 7 (1-4); 8 (1-4); 9 (1-4); 10 (1-4); 11 (1-4); 12 (1-4); 13 (1-4); 14 (1-4); 15 (1, 2, 3-4); 16 (1-4); 17 (2, 3-4); 18 (1-4); 19 (1-4); 20 (1-4); 21 (1-4); 22 (1-4); 23 (1-4); 24 (1-4); 25 (1-4); 26 (1-2, 3, 4); 27 (1-4); 28 (1-2, 3, 4); 29 (1, 2, 3-4); 30 (1-2, 3, 4); 31 (1-4); 32 (2, 3-4); 33 (1-2, 3-4); 34 (1, 2, 3-4); 35 (1, 2, 3-4); 36 (1-4); 37 (1-3, 4); 38 (1-2, 3, 4); 39 (1-2, 3, 4); 40 (1-4); 41 (1-4); 42 (1-4); 43 (1-3, 4); 44 (1-4); 45 (1, 2-3, 4); 46 (1-2, 3, 4); 47 (1-4); 48 (1-4); 49 (1-4); 50 (1-4); 51 (1-4); 52 (1, 2, 3-4, 5, 6); 53 (1-6); 54 (1-6); 55 (1-6); 56 (1-2, 3-6)
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National Digital Preservation Program, China
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Preserved
|
2025-12-04
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Preserved : 7 (2 to 9, 11 to 19, 21, 22); 69 (1 to 9, 11 to 16); 71 (1 to 9, 11 to 18); 72 (1 to 9, 11 to 18); 73 (1 to 7)
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Library of Congress
|
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Preserved
|
2025-04-07
|
|
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58 (1 to 8); 59 (1 to 12); 60 (1 to 11-12); 61 (1 to 12); 62 (1 to 12); 63 (1 to 12); 64 (1 to 12); 65 (1 to 12); 66 (1 to 12); 67 (1 to 12); 68 (1 to 12); 69 (1 to 16); 70 (1 to 22); 71 (1, 3 to 18); 72 (1 to 17)
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