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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 6); 2 (S7, 1 to 3, 4-5, 6); 3 (S1, 1 to 6); 4 (S1, 1 to 6); 5 (S1, 1 to 6); 6 (S2, 1 to 6); 7 (S1, 1 to 6); 8 (S1, 1 to 7); 9 (S1, 1 to 7); 10 (1 to 7); 11 (1 to 8); 12 (S1, 1 to 8); 13 (S1, 1 to 12); 14 (S1, 1 to 12); 15 (S1, 1 to 12); 16 (S1, 1 to 12); 17 (S1, 1 to 12); 18 (S1, 1 to 12); 19 (S1, 1 to 12); 20 (S1, 1 to 12); 21 (S1, 1, 4, 6 to 9, 11, 12); 22 (1 to 9); 23 (S1, 2 to 12); 24 (S1, 1 to 10, 12); 25 (S1, 1 to 12); 26 (S1, 1 to 9, 11, 12); 27 (, 1 to 12); 28 (S1, 1 to 12); 29 (S1, 1 to 12); 30 (S2, 1 to 12); 31 (S1, 1 to 12); 32 (S1, 1 to 12); 33 (S1, 1 to 12); 34 (S1, 1 to 12); 35 (S2, 1, 2)
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Internet Archive
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Preserved
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2025-08-08
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15
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CLOCKSS Archive
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Preserved
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2026-04-27
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1 to 35
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Portico
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Preserved
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2026-04-23
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Preserved : 1992: 1(1-6), 1993: 2(1-6, S 7), 1994: 3(1, S 1, 2-6), 1995: 4(1, S 1, 2-6), 1996: 5(1, S 1, 2-6), 1997: 6(1-2, S 2, 3, S 3, 4-6), 1998: 7(1, S 1, 2-6), 1999: 8(1, S 1, 2, S 2, 3-7), 2000: 9(1, S 1, 2-7), 2001: 10(1-7), 2002: 11(1-8), 2003: 12(1, S 1, 2, S 2, 3-8), 2004: 13(1, S 1, 2-12), 2005: 14(1, S 1, 2, S 2, 3-12), 2006: 15(1, S 1, 2-12), 2007: 16(1, S 1, 2, S 2, 3-12), 2008: 17(1, S 1, 2-12), 2009: 18(1, S 1, 2-12), 2010: 19(1, S 1, 2-12), 2011: 20(1-12), 2012: 21(1, S1, 2, S2, 3-12), 2013: 22(1, S 1, 2-12), 2014: 23(1, S 1, 2-12), 2015: 24(1, S 1, 2, S2, 3-12), 2016: 25(1, S1, 2, S2, 3, S3, 4-12), 2017: 26(1, S1, 2, S2, 3-12), 2018: 27(1, S1, 2, S2, 3-12), 2019: 28(1, S1, 2, S2, 3-12), 2020: 29(1, S1, 2, S2, 3, S3, 4-12), 2021: 30(1, S1, 2, S2, 3-12), 2022: 31(1, S1, 2, S2, 3-12), 2023: 32(1, S1, 2-12), 2024: 33(1, S1, 2, S2, 3-12), 2025: 34(1, S1, 2-12), 2026: 35(1-3)
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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 to 7); 2 (S1, 1 to 9, 11, 12); 3 (S1, 1 to 9, 11, 12); 5 (S1, 1 to 6); 6 (S3, 1 to 6); 7 (S1, 1 to 6); 8 (S1, 1 to 7); 9 (S1, 1 to 7); 11 (1 to 8); 12 (1 to 8); 13 (S1, 1 to 9, 11, 12); 14 (S1, 1 to 9, 11, 12); 15 (S1, 1 to 9, 11, 12); 16 (S1, 1 to 9, 11, 12); 17 (S1, 1 to 9, 11, 12); 18 (S1, 1 to 9, 11, 12); 19 (S1, 1 to 9, 11, 12); 21 (, 1 to 9, 11, 12); 22 (s1, 1 to 9, 11, 12); 23 (S1, 1 to 9, 11, 12); 24 (, 1 to 9, 11, 12); 25 (, 1 to 9, 11, 12); 26 (, 1 to 9, 11, 12); 27 (, 1 to 9, 11, 12); 28 (S1, 1 to 9, 11, 12); 29 (S1, 1 to 9, 11, 12); 31 (S1, 1 to 7, 9, 11, 12); 32 (S1, 1 to 9, 11, 12); 33 (S1, 1 to 9, 11, 12); 34 (S1, 1 to 9)
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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 to 7); 2 (S1, 1 to 9, 11, 12); 3 (S1, 1 to 9, 11, 12); 5 (S1, 1 to 6); 6 (S3, 1 to 6); 7 (S1, 1 to 6); 8 (S1, 1 to 7); 9 (S1, 1 to 7); 11 (1 to 8); 12 (1 to 8); 13 (S1, 1 to 9, 11, 12); 14 (S1, 1 to 9, 11, 12); 15 (S1, 1 to 9, 11, 12); 16 (S2, 1 to 9, 11, 12); 17 (S1, 1 to 9, 11, 12); 18 (S1, 1 to 9, 11, 12); 19 (S1, 1 to 9, 11, 12); 21 (, 1 to 9, 11, 12); 22 (s1, 1 to 9, 11, 12); 23 (S1, 1 to 9, 11, 12); 24 (, 1 to 9, 11, 12); 25 (, 1 to 9, 11, 12); 26 (, 1 to 9, 11, 12); 27 (, 1 to 9, 11, 12); 28 (S1, 1 to 9, 11, 12); 29 (S1, 1 to 9, 11, 12); 31 (S1, 1 to 7, 9, 11, 12); 32 (S1, 1 to 9, 11, 12); 33 (S1, 1 to 9, 11, 12); 34 (S1, 1 to 9)
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