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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); 4; 5; 6; 7; 8; 9; 10 (2 to 5); 11 (1 to 6); 12 (1 to 6); 13 (1 to 6); 14 (1 to 9); 15 (1 to 9); 16 (1 to 12); 17 (1 to 15); 18 (1 to 15); 20 (1 to 18); 21 (1 to 18); 22 (14); 23 (1); 24 (2 to 16, 17-18); 25 (2 to 15, 16-18); 26 (1 to 18); 27 (1 to 18); 28 (1 to 18); 29 (1 to 18); 30 (1 to 18); 31 (1 to 18); 32 (1 to 18); 33 (1 to 18); 34 (1 to 18); 35 (1, 8 to 18); 36 (1 to 18); 37 (1 to 18); 38 (1 to 18); 39 (1 to 18); 40 (1 to 18); 41 (1, 3 to 18); 42 (1 to 18); 43 (1 to 18); 44 (1 to 18); 45 (1 to 18); 46 (1 to 18); 47 (1 to 18); 48 (1 to 18); 49 (1 to 6)
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Internet Archive
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Preserved
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2025-08-08
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8 to 25
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CLOCKSS Archive
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Preserved
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2026-03-30
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1 to 9, 14 to 49
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Portico
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Preserved
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2026-04-02
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Preserved : 1984: 6(1)
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Portico
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Preserved
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2026-04-02
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Preserved : 1988: 10(1-5), 1989: 11(1-6), 1990: 12(1-6), 1990: 13(1-6), 1991: 14(1-9), 1992: 15(1-9), 1993: 16(1-12), 1994: 17(1-15), 1995: 18(1-15), 1996: 19(1-18), 1997: 20(1-18), 1998: 21(1-18), 1999: 22(1-18), 2000: 23(1-18), 2001: 24(1-18), 2002: 25(1-18), 2003: 26(1-18), 2004: 27(1-18), 2005: 28(1-18), 2006: 29(1-18), 2007: 30(1-18), 2008: 31(1-18), 2009: 32(1-18), 2010: 33(1-18), 2011: 34(1-18), 2012: 35(1-18), 2013: 36(1-18), 2014: 37(1-18), 2015: 38(1-18), 2016: 39(1-18), 2017: 40(1-18), 2018: 41(1-18), 2019: 42(1-18), 2020: 43(1-18), 2021: 44(1-18), 2022: 45(1-18), 2023: 46(1-18), 2024: 47(1-18), 2025: 48(1-18), 2026: 49(1-4)
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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 : 2 (1 to 9, 11 to 18); 3 (1 to 9, 11 to 18); 4 (1 to 9, 11 to 18); 19 (1 to 9, 11 to 18); 21 (1 to 9, 11 to 18); 22 (1 to 9, 11 to 18); 23 (1 to 9, 11 to 18); 24 (1 to 9, 11 to 16, 17?18); 25 (1 to 9, 11 to 15, 16?18); 26 (1 to 9, 11 to 18); 27 (1 to 9, 11 to 18); 28 (1 to 9, 11 to 18); 29 (1 to 9, 11 to 18); 31 (1 to 9, 11 to 18); 32 (1 to 9, 11 to 18); 33 (1 to 9, 11 to 18); 34 (1 to 9, 11 to 18); 35 (1 to 9, 11 to 18); 36 (1 to 9, 11 to 18); 37 (1 to 9, 11 to 18); 38 (1 to 9, 11 to 18); 39 (1 to 9, 11 to 18); 41 (1 to 9, 11 to 18); 42 (1 to 9, 11 to 18); 43 (1 to 9, 11, 12, 14 to 18); 44 (1 to 9, 11 to 18); 45 (1 to 9, 11 to 18); 46 (1 to 9, 11 to 18); 47 (1 to 4, 6 to 9, 11 to 18); 48 (1 to 9, 11 to 15)
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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 : 2 (1 to 9, 11 to 18); 3 (1 to 9, 11 to 18); 4 (1 to 9, 11 to 18); 19 (1 to 9, 11 to 18); 21 (1 to 9, 11 to 18); 22 (1 to 9, 11 to 18); 23 (1 to 9, 11 to 18); 24 (1 to 9, 11 to 16, 17?18); 25 (1 to 9, 11 to 15, 16?18); 26 (1 to 9, 11 to 18); 27 (1 to 9, 11 to 18); 28 (1 to 9, 11 to 18); 29 (1 to 9, 11 to 18); 31 (1 to 9, 11 to 18); 32 (1 to 9, 11 to 18); 33 (1 to 9, 11 to 18); 34 (1 to 9, 11 to 18); 35 (1 to 9, 11 to 18); 36 (1 to 9, 11 to 18); 37 (1 to 9, 11 to 18); 38 (1 to 9, 11 to 18); 39 (1 to 9, 11 to 18); 41 (1 to 9, 11 to 18); 42 (1 to 9, 11 to 18); 43 (1 to 9, 11, 12, 14 to 18); 44 (1 to 9, 11 to 18); 45 (1 to 9, 11 to 18); 46 (1 to 9, 11 to 18); 47 (1 to 4, 6 to 9, 11 to 18); 48 (1 to 9, 11 to 16)
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