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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 to 3); 8 (2 to 4); 9 (1 to 4); 10 (1 to 4); 11 (1-2, 3-4); 12 (1 to 4); 13 (1 to 4); 14 (1 to 4); 15 (1 to 4); 16 (1 to 4); 17 (1-2, 3, 4); 18 (1-3, 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 to 4); 27 (1 to 4); 28 (1-2, 3, 4); 29 (1-4); 30 (2, 3-4); 31 (1 to 6); 32 (1 to 6); 33 (1 to 6); 34 (1 to 6); 35 (1 to 4); 36 (3); 40 (1 to 12); 41 (2 to 4, 9, 10); 42 (1 to 8, 10 to 12); 43 (1 to 12); 44 (1 to 4, 10 to 12); 45 (1 to 12); 46 (1 to 12); 47 (1 to 9, 11, 12); 48 (1 to 5, 8 to 10, 12); 49 (1 to 12); 50 (1 to 12); 51 (1 to 12); 52 (1 to 12); 53 (1 to 12); 54 (1 to 12); 55 (1 to 12); 56 (1, 2, 4 to 12); 57 (1 to 12); 58 (1 to 3)
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LOCKSS Archive
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Preserved
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2026-04-13
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1 to 56
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CLOCKSS Archive
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Preserved
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2026-04-13
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ahead-of-print to 57
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LOCKSS Archive
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In Progress
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2026-04-13
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57, 58
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Portico
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Preserved
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2026-04-16
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Preserved : 1987: 11(1-4), 1987: 12(1-4), 1988: 13(1-4), 1988/1989: 14(1-4), 1989/1990: 15(1-4), 1990: 16(1-4), 1991: 17(1-4), 1991/1992: 18(1-4), 1992: 19(1-4), 1992/1993: 20(1-4), 1993: 21(1-4), 1993/1994: 22(1-4), 1994/1995: 23(1-4), 1995: 24(1-4), 1995/1996: 25(1-4), 1996: 26(1-4), 1996/1997: 27(1-4), 1997: 28(1-4), 1997: 29(1-4), 1998: 30(1-4), 1998/1999: 31(1-6), 1999/2000: 32(1-6), 2000/2001: 33(1-6), 2002: 34(1-6), 2003: 35(1-6), 2004: 36(1-6), 2005: 37(1-8), 2006: 38(1-8), 2007: 39(1-8), 2008: 40(1-12), 2009: 41(1-12), 2010: 42(1-12), 2011: 43(1-12), 2012: 44(1-12), 2013: 45(1-12), 2014: 46(1-12), 2015: 47(1-12), 2016: 48(1-12), 2017: 49(1-12), 2018: 50(1-12), 2019: 51(1-12), 2020: 52(1-12), 2021: 53(1-12), 2022: 54(1-12), 2023: 55(1-12), 2024: 56(1-12), 2025: 57(1-12), 2026: 58(1-4)
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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 : 52 (5); 53 (1 to 9, 11, 12); 54 (1 to 9, 11, 12); 55 (1 to 9, 11); 56 (1 to 9, 11, 12); 57 (1)
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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 : 1 (1-4); 2 (1-4); 3 (1-4); 4 (1-4); 5 (1-4); 6 (1-4); 7 (1-4); 8 (1-4); 9 (1-4); 10 (1-4); 11 (1-2, 3-4); 12 (1-4); 13 (1-4); 14 (1-4); 15 (1-4); 16 (1-3); 17 (1-2, 3, 4); 18 (1-3, 4); 19 (1-4); 20 (1-4); 21 (1-4); 22 (1-4); 23 (2-4); 24 (1-4); 25 (1-4); 26 (1-4); 27 (1-4); 28 (1-2, 3, 4); 29 (1-4); 30 (2, 3-4); 31 (1-6); 32 (1-6); 33 (1-6); 34 (1-6); 35 (1, 2, 4-6); 36 (1-6); 37 (1, 2); 38 (3-8); 39 (1-8); 40 (1-12)
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Library of Congress
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Preserved
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2025-04-07
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42 (1 to 12); 43 (1 to 12); 44 (1 to 12); 45 (1 to 12); 46 (1 to 12); 47 (1 to 12); 48 (1 to 12); 49 (1 to 12); 50 (1 to 12); 51 (1 to 12); 52 (1 to 12); 53 (1 to 12); 54 (1 to 12); 55 (1 to 12); 56 (1 to 11)
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