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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 (1 to 6); 3 (1 to 6); 4 (1 to 6); 5 (1 to 6); 6 (1 to 6); 7 (1 to 6); 8 (1 to 6); 9 (1 to 6); 10 (1 to 6); 11 (1 to 6); 12 (1 to 6); 13 (1 to 6); 14 (1 to 6); 15 (1 to 6); 16 (1 to 6); 17 (1 to 6); 18 (1 to 6); 19 (1 to 6); 20 (1 to 6); 21 (1 to 6); 22 (1 to 6); 23 (1 to 6); 24 (1 to 6); 25 (1‐2, 3‐4, 5‐6); 26 (1‐2, 3‐4, 5‐6); 27 (1 to 6); 28 (1 to 6); 29 (1 to 6); 30 (1 to 6); 31 (1 to 6); 32 (1 to 6)
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Portico
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Preserved
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2026-04-02
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Preserved : 1981: 1(1-6), 1982/1983: 2(1-6), 1983: 3(1-6), 1984: 4(1-6), 1985: 5(1-6), 1986: 6(1-6), 1987: 7(1-6), 1988/1989: 8(1-6), 1989/1990: 9(1-6), 1990/1991: 10(1-6), 1991: 11(1-6), 1992: 12(1-6), 1993: 13(1-6), 1994: 14(1-6), 1995: 15(1-6), 1996: 16(1-6), 1997: 17(1-6), 1998: 18(1-6), 1999: 19(1-6), 2000: 20(1-6), 2001: 21(1-6), 2002: 22(1), 2003: 23(1), 2004: 24(1-6)
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CLOCKSS Archive
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Preserved
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2026-04-06
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10 to 39, 2022 to 2026
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Portico
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Preserved
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2026-04-02
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Preserved : 2008: 26(3-6), 2009: 27(1-6), 2010: 28(1-6), 2011/2012: 29(1-6), 2012: 30(1-6), 2013: 31(1-6), 2014: 32(1-6), 2015: 33(1-6), 2016: 34(1-6), 2017: 35(1-6), 2018: 36(1-2), 2019: 37(1-12), 2020: 38(1-12), 2021: 39(1-12), 2022: 2022(1-12), 2023: 2023(1-12), 2024: 2024(1-12), 2025: 2025(1-12), 2026: 2026(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 : 2 (1 to 6); 3 (1 to 6); 17 (1 to 6); 18 (1 to 6); 19 (1 to 6); 21 (1 to 6); 22 (1 to 6); 23 (1 to 6); 24 (1 to 6); 25 (1?2, 3?4, 5‐6); 26 (1?2, 3?4, 5?6); 27 (1 to 6); 28 (1 to 6); 29 (1 to 6); 31 (1 to 6); 32 (1 to 5); 33 (1 to 6); 34 (1 to 6); 35 (1 to 6); 36 (1_2, 3 to 9, 11, 12); 37 (1 to 9, 11, 12); 38 (1 to 9, 11, 12); 39 (1 to 9, 11, 12); 222 (1 to 9, 11, 12); 223 (1 to 9, 11, 12); 224 (1 to 9, 11, 12); 225 (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 : 2 (1 to 6); 3 (1 to 6); 17 (1 to 6); 18 (1 to 6); 19 (1 to 6); 21 (1 to 6); 22 (1 to 6); 23 (1 to 6); 24 (1 to 6); 25 (1?2, 3?4, 5‐6); 26 (1?2, 3?4, 5?6); 27 (1 to 6); 28 (1 to 6); 29 (1 to 6); 31 (1 to 6); 32 (1 to 5); 33 (1 to 6); 34 (1 to 6); 35 (1 to 6); 36 (1_2, 3 to 9, 11, 12); 37 (1 to 9, 11, 12); 38 (1 to 9, 11, 12); 39 (1 to 9, 11, 12); 222 (1 to 9, 11, 12); 223 (1 to 9, 11, 12); 224 (1 to 9, 11, 12); 225 (1 to 9)
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Library of Congress
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Preserved
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2025-04-07
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33 (1 to 6); 34 (1 to 6); 35 (2 to 6); 36 (1_2, 3 to 8, 10, 12); 37 (2 to 12); 38 (1, 3, 4, 6 to 12); 39 (1 to 11); 2022; 2023; 2024
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