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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 4); 5 (1 to 4); 6 (1 to 4); 7 (1 to 4); 8 (1 to 4); 9 (1 to 4); 10 (1-3, 4); 11 (1 to 4); 12 (1 to 4); 13 (1 to 4); 14 (1 to 4); 15 (1/2, 3); 16 (1 to 3); 17 (1/2, 3); 18 (1/2, 3); 19 (1/2, 3); 20 (1, 2/3); 21 (1 to 3); 22 (1/2, 3); 23 (1 to 3); 24 (1/2, 3); 25 (1 to 3); 26 (1 to 3); 27 (1/2, 3); 28 (1 to 3); 29 (1 to 3); 30 (1 to 3); 31 (1, 2/3); 32 (1 to 3); 33 (1 to 3); 34 (1 to 3); 35 (1 to 3); 36 (1 to 3); 37 (1 to 3); 38 (1/3); 39 (2, 3); 40 (1 to 3); 41 (1 to 3); 42 (1 to 3); 43 (1 to 3); 44 (1 to 3); 45 (1 to 3); 46 (1 to 3); 47 (1 to 3); 48 (1 to 3); 49 (1 to 3); 50 (1/3); 51 (2, 3); 52 (1 to 3); 53 (1 to 3); 54 (1 to 3); 55 (1 to 3); 56 (1, 2/3); 57 (1 to 3); 58 (1 to 3); 59 (1 to 3); 60 (1/3); 61 (2, 3); 62 (1 to 3); 63 (1/3); 64 (2, 3); 65 (1 to 3); 66 (1 to 3); 67 (1 to 3); 68 (1/3); 69 (2, 3); 70 (1 to 3); 71 (1 to 3); 72 (1 to 3); 73 (1 to 3); 74 (1 to 3); 75 (1 to 3); 76 (1 to 3); 77 (1 to 3); 78 (1 to 3); 79 (1 to 3); 80 (1 to 3); 81 (1-2, 3); 82 (1 to 3); 83 (1 to 3); 84 (1 to 3); 85 (1 to 3); 86 (1 to 3); 87 (1 to 3); 88 (1 to 3); 89 (1 to 3); 90 (1 to 3); 91 (1 to 3); 92 (1 to 3); 93 (1 to 3); 94 (1 to 3); 95 (2, 3); 96 (1 to 3); 97 (1 to 3); 98 (1-2, 3); 99 (1, 2)
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Internet Archive
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Preserved
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2025-08-08
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1 to 78
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CLOCKSS Archive
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Preserved
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2026-04-06
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1 to 99
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Portico
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Preserved
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2026-04-02
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Preserved : 1970: 1(1-4), 1971: 2(1-4), 1972: 3(1-4), 1973: 4(1-4), 1974: 5(1-4), 1975: 6(1-4), 1976: 7(1-4), 1977: 8(1-4), 1978: 9(1-4), 1979: 10(1-4), 1980: 11(1-4), 1981: 12(1-4), 1982: 13(1-4), 1983: 14(1-4), 1984: 15(1-3), 1984: 16(1-3), 1985: 17(1-3), 1985: 18(1-3), 1986: 19(1-3), 1986: 20(1-3), 1987: 21(1-3), 1987: 22(1-3), 1988: 23(1-3), 1988: 24(1-3), 1989: 25(1-3), 1989: 26(1-3), 1990: 27(1-3), 1990: 28(1-3), 1991: 29(1-3), 1991: 30(1-3), 1992: 31(1-3), 1992: 32(1-3), 1993: 33(1-3), 1993: 34(1-3), 1994: 35(1-3), 1994: 36(1-3), 1995: 37(1-3), 1995: 38(1-3), 1996: 39(1-3), 1996: 40(1-3), 1997: 41(1-3), 1997: 42(1-3), 1998: 43(1-3), 1998: 44(1-3), 1999: 45(1-3), 1999: 46(1-3), 2000: 47(1-3), 2000: 48(1-3), 2001: 49(1-3), 2001: 50(1-3), 2002: 51(1-3), 2002: 52(1-3), 2003: 53(1-3), 2003: 54(1-3), 2004: 55(1-3), 2004: 56(1-3), 2005: 57(1-3), 2005: 58(1-3), 2006: 59(1-3), 2006: 60(1-3), 2007: 61(1-3), 2007: 62(1-3), 2008: 63(1-3), 2008: 64(1-3), 2009: 65(1-3), 2009: 66(1-3), 2010: 67(1-3), 2010: 68(1-3), 2011: 69(1-3), 2011: 70(1-3), 2012: 71(1-3), 2012: 72(1-3), 2013: 73(1-3), 2013: 74(1-3), 2014: 75(1-3), 2014: 76(1-3), 2015: 77(2-3), 2015: 78(1-3), 2016: 79(1-3), 2016: 80(1-3), 2017: 81(1-3), 2017: 82(1-3), 2018: 83(1-3), 2018: 84(1-3), 2019: 85(1-3), 2019: 86(1-3), 2019/2020: 87(1-3), 2020: 88(1-3), 2021: 89(1-3), 2021: 90(1-3), 2022: 91(1-3), 2022: 92(1-3), 2023: 93(1-3), 2023: 94(1-3), 2024: 95(1-3), 2024: 96(1-3), 2025: 97(1-3), 2025: 98(1-3), 2025/2026: 99(1-2)
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LOCKSS Archive
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In Progress
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2026-04-06
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71, 72, 85, 86
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LOCKSS Archive
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Preserved
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2026-04-06
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73 to 84
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Library of Congress
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Preserved
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2025-04-07
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83 (2, 3); 84 (1 to 3); 85 (1 to 3); 86 (1 to 3); 87 (1 to 3); 88 (1 to 3); 89 (1 to 3); 90 (1 to 3); 91 (1 to 3); 92 (1 to 3); 93 (1 to 3); 94 (1 to 3); 95 (1 to 3); 96 (1, 2)
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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 : 5 (1); 6; 7 (2, 3); 8 (1 to 3); 9 (1 to 3); 41 (1 to 3); 42 (1 to 3); 43 (1 to 3); 44 (1 to 3); 45 (1 to 3); 46 (1 to 3); 47 (1 to 3); 48 (1 to 3); 49 (1 to 3); 51 (1 to 3); 52 (1 to 3); 53 (1 to 3); 54 (1 to 3); 55 (1 to 3); 56 (1, 2); 57 (1 to 3); 58 (1 to 3); 59 (1 to 3); 61 (1 to 3); 62 (1 to 3); 63 (1); 64 (2, 3); 65 (1 to 3); 66 (1 to 3); 67 (1 to 3); 68 (1); 69 (2, 3); 71 (1 to 3); 72 (1 to 3); 73 (1 to 3); 74 (1 to 3); 75 (1 to 3); 76 (1 to 3); 77 (1 to 3); 78 (1 to 3); 79 (1 to 3); 81 (1, 3); 82 (1 to 3); 83 (1 to 3); 84 (1 to 3); 85 (1 to 3); 86 (1 to 3); 87 (1 to 3); 88 (1 to 3); 89 (1 to 3); 91 (1 to 3); 92 (1 to 3); 93 (1 to 3); 94 (1 to 3); 95 (1 to 3); 96 (1 to 3)
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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 : 5 (1); 6; 7 (2, 3); 8 (1 to 3); 9 (1 to 3); 41 (1 to 3); 42 (1 to 3); 43 (1 to 3); 44 (1 to 3); 45 (1 to 3); 46 (1 to 3); 47 (1 to 3); 48 (1 to 3); 49 (1 to 3); 51 (1 to 3); 52 (1 to 3); 53 (1 to 3); 54 (1 to 3); 55 (1 to 3); 56 (1, 2); 57 (1 to 3); 58 (1 to 3); 59 (1 to 3); 61 (1 to 3); 62 (1 to 3); 63 (1); 64 (2, 3); 65 (1 to 3); 66 (1 to 3); 67 (1 to 3); 68 (1); 69 (2, 3); 71 (1 to 3); 72 (1 to 3); 73 (1 to 3); 74 (1 to 3); 75 (1 to 3); 76 (1 to 3); 77 (1 to 3); 78 (1 to 3); 79 (1 to 3); 81 (1, 3); 82 (1 to 3); 83 (1 to 3); 84 (1 to 3); 85 (1 to 3); 86 (1 to 3); 87 (1 to 3); 88 (1 to 3); 89 (1 to 3); 91 (1 to 3); 92 (1 to 3); 93 (1 to 3); 94 (1 to 3); 95 (1 to 3); 96 (1 to 3)
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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 : 41 (1-3); 42 (1, 2, 3-4); 43 (1-3); 44 (1-3); 45 (1-3); 46 (1-3); 47 (1-3); 48 (1-3); 49 (1-3); 50 (1); 51 (2, 3); 52 (1-3); 53 (1-3); 54 (1-3); 55 (1-3); 56 (1, 2); 57 (1-3); 58 (1-3); 59 (1-3); 60 (1-3); 61 (3); 62 (1-3); 63 (1-3); 64 (2, 3); 65 (1-3); 66 (1-3); 67 (1-3); 68 (1-3); 69 (2, 3); 70 (1-3); 71 (2, 3); 72 (1-3); 73 (supplement-1, 1-3); 74 (1-3); 75 (1-3); 76 (1-3); 77 (1-3); 78 (1-3); 79 (1-3); 80 (1-3); 81 (1-2, 3); 82 (1-3); 83 (1-3); 84 (1-3); 85 (1-3); 86 (1, 2)
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