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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 (S1, 1 to 6); 3 (S1, 1 to 6); 4 (S1, 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 (2 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 to 6); 26 (1 to 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); 33 (1 to 6); 34 (1 to 6); 35 (1, 6); 36 (1 to 6); 37 (1 to 6); 38 (1 to 6); 39 (1 to 6); 40 (1 to 6); 41 (1 to 6); 42 (1 to 6); 43 (1 to 6); 44 (1 to 6); 45 (1 to 6); 46 (1 to 6); 47 (1 to 6); 48 (1 to 6); 49 (1 to 7); 50 (1 to 6); 51 (1 to 6); 52 (1 to 6); 53 (1 to 6); 54 (1 to 6); 55 (1 to 6); 56 (1 to 6); 57 (1 to 6); 58 (1 to 6); 59 (1 to 6); 60 (1 to 6); 61 (1 to 6); 62 (1 to 6); 63 (1 to 4)
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CLOCKSS Archive
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Preserved
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2026-04-13
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1 to 63
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Portico
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Preserved
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2026-04-16
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Preserved : 1991: 1(1-6), 1992: 2(1, S 1, 2, S 2, 3-6), 1993: 3(1, S 1, 2-6), 1994: 4(1, S 1, 2-6), 1995: 5(1-6), 1996: 6(1-6), 1997: 7(1-6), 1998: 8(1-6), 1999: 9(1-6), 1999: 10(1-6), 2000: 11(1-6), 2000: 12(1-6), 2001: 13(1-6), 2001: 14(1-6), 2002: 15(1-6), 2002: 16(1-6), 2003: 17(1-6), 2003: 18(1-6), 2004: 19(1-6), 2004: 20(1-6), 2005: 21(1-6), 2005: 22(1-6), 2006: 23(1-6), 2006: 24(1-6), 2007: 25(1-6), 2007: 26(1-6), 2008: 27(1-6), 2008: 28(1-6), 2009: 29(1-6), 2009: 30(1-6), 2010: 31(1-6), 2010: 32(1-6), 2011: 33(1-6), 2011: 34(1-6), 2012: 35(1-6), 2012: 36(1-6), 2013: 37(1-6), 2013: 38(1-6), 2014: 39(1-6), 2014: 40(1-6), 2015: 41(1-6), 2015: 42(1-6), 2016: 43(1-6), 2016: 44(1-6), 2017: 45(1-6), 2017: 46(1-6), 2018: 47(1-6), 2018: 48(1-6), 2019: 49(1-7), 2019: 50(1-6), 2020: 51(1-6), 2020: 52(1-6), 2021: 53(1-6), 2021: 54(1-6), 2022: 55(1-6), 2022: 56(1-6), 2023: 57(1-6), 2023: 58(1-6), 2024: 59(1-6), 2024: 60(1-6), 2025: 61(1-6), 2025: 62(1-6), 2026: 63(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 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); 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); 21 (1 to 6); 22 (1 to 6); 23 (1 to 6); 24 (1 to 6); 25 (1 to 6); 26 (1 to 6); 27 (1 to 6); 28 (1 to 6); 29 (1 to 6); 31 (1 to 6); 32 (1 to 6); 33 (1 to 6); 34 (1 to 6); 35 (1 to 6); 36 (1 to 6); 37 (1 to 6); 38 (1 to 6); 39 (1 to 6); 41 (1 to 6); 42 (1 to 6); 43 (1 to 6); 44 (1 to 6); 45 (1 to 6); 46 (1 to 6); 47 (1 to 6); 48 (1 to 6); 49 (1 to 7); 51 (1 to 6); 52 (1 to 6); 53 (1 to 6); 54 (1 to 6); 55 (1 to 6); 56 (1 to 6); 57 (1 to 6); 58 (1 to 6); 59 (1 to 6); 61 (1 to 6); 62 (1, 2, 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 : 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); 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); 21 (1 to 6); 22 (1 to 6); 23 (1 to 6); 24 (1 to 6); 25 (1 to 6); 26 (1 to 6); 27 (1 to 6); 28 (1 to 6); 29 (1 to 6); 31 (1 to 6); 32 (1 to 6); 33 (1 to 6); 34 (1 to 6); 35 (1 to 6); 36 (1 to 6); 37 (1 to 6); 38 (1 to 6); 39 (1 to 6); 41 (1 to 6); 42 (1 to 6); 43 (1 to 6); 44 (1 to 6); 45 (1 to 6); 46 (1 to 6); 47 (1 to 6); 48 (1 to 6); 49 (1 to 7); 51 (1 to 6); 52 (1 to 6); 53 (1 to 6); 54 (1 to 6); 55 (1 to 6); 56 (1 to 6); 57 (1 to 6); 58 (1 to 6); 59 (1 to 6); 61 (1 to 6); 62 (1, 2, 4, 5)
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