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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 1 (1, 2); 2 (, 1, 2); 3 (, 1, 2); 4 (, 1, 2); 5 (, 1, 2); 6 (, 1, 2); 7 (, 1, 2); 8 (, 1-2); 9 (, 1-2); 10 (, 1-2); 11 (, 1, 2); 12 (, 1, 2); 13 (, 1, 2); 14 (, 1, 2); 15 (, 1, 2); 16 (, 1); 17 (, 1); 18 (, 1); 19 (, 1); 20 (, 1); 21 (, 1); 22 (, 1, 2); 23 (, 1, 2); 24 (, 1, 2); 25 (, 1, 2); 26 (, 1, 2); 27 (, 1, 2); 28 (, 1, 2); 29 (, 1, 2); 30 (, 1, 2); 31 (, 1-2); 32 (, 1-2); 33 (, 1-2); 34 (, 1-2); 35 (, 1-2); 36 (, 1-2); 37 (, 1-2); 38 (, 1-2); 39 (, 1-2); 40 (, 1-2); 41 (, 1-2); 42 (, 1-2); 43 (, 1-2); 44 (, 1-2); 45 (, 1-2); 46 (, 1-2); 47 (, 1-2); 48 (, 1-2); 49 (, 1-2); 50 (, 1-2); 51 (, 1-2); 52 (, 1-2); 53 (, 1-2); 54 (, 1-2); 55 (, 1-2); 56 (, 1-2); 57 (, 1-2); 58 (, 1-2); 59 (, 1-2); 60 (, 1-2); 61 (, 1-2); 62 (, 1-2); 63 (, 1-2); 64 (, 1-2); 65 (, 1-2); 66 (, 1-2); 67 (, 1-2); 68 (, 1-2); 69 (, 1-2); 70 (, 1-2); 71 (, 1-2); 72 (, 1-2); 73 (, 1-2); 74 (, 1-2); 75 (, 1-2); 76 (, 1-2); 77 (, 1-2); 78 (, 1-2); 79 (, 1-2); 80 (, 1-2); 81 (, 1-2); 82 (, 1-2); 83 (, 1-2); 84 (, 1-2); 85 (, 1-2); 86 (, 1-2); 87 (, 1-2); 88 (, 1-2); 89 (, 1-2); 90 (, 1-2); 91 (, 1-2); 92 (, 1-2); 93 (, 1-2); 94 (, 1-2); 95 (, 1-2); 96 (, 1-2); 97 (, 1-2); 98 (, 1-2); 99 (, 1-2); 100 (, 1-2); 101 (, 1-2); 102 (, 1-2); 103 (, 1 to 3); 104 (, 1 to 3); 105 (, 1 to 3); 106 (, 1 to 3); 107 (, 1 to 3); 108 (, 1 to 3); 109 (, 1 to 3); 110 (, 2, 3); 111 (, 1 to 3); 112 (, 1 to 3); 113 (, 1 to 3); 114 (, 1 to 3); 115 (, 1 to 3); 116 (, 1, 2); 1971; 1972; 1973; 1974; 1975; 1976; 1977; 1978; 1979; 1980; 1981; 1982; 1983; 1984; 1985; 1986; 1987; 1988; 1989; 1990; 1991; 1992; 1993; 1994; 1995; 1996; 1997; 1998; 1999; 2000; 2001; 2002; 2003; 2004; 2005; 2006; 2007; 2008; 2009; 2010; 2011; 2012; 2013; 2014; 2015; 2016; 2017; 2018; 2019; 2020; 2021; 2022; 2023; 2024; 2025
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LOCKSS Archive
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In Progress
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2026-02-09
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CLOCKSS Archive
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Preserved
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2026-02-09
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1 to 83, 85, 94 to 117
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Portico
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Preserved
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2026-02-12
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Preserved : 1971: 1(1-2), 1972: 2(1-2), 1973: 3(1-2), 1974: 4(1-2), 1974: 5(1-2), 1975: 6(1-2), 1976: 7(1-2), 1976: 8(1-2), 1977: 9(1-2), 1977: 10(1-2), 1978: 11(1-2), 1979: 12(1-2), 1979: 13(1-2), 1980: 14(1-2), 1980: 15(1-2), 1981: 16(1), 1981: 17(1), 1982: 18(1), 1982: 19(1), 1983: 20(1), 1983: 21(1), 1984: 22(1-2), 1984: 23(1-2), 1985: 24(1-2), 1985: 25(1-2), 1986: 26(1-2), 1986: 27(1-2), 1987: 28(1-2), 1987: 29(1-2), 1987: 30(1-2), 1988: 31(1-2), 1988: 32(1-2), 1988: 33(1-2), 1989: 34(1-2), 1989: 35(1-2), 1989: 36(1-2), 1990: 37(1-2), 1990: 38(1-2), 1990: 39(1-2), 1991: 40(1-2), 1991: 41(1-2), 1991: 42(1-2), 1992: 43(1-2), 1992: 44(1-2), 1992: 45(1-2), 1993: 46(1-2), 1993: 47(1-2), 1993: 48(1-2), 1994: 49(1-2), 1994: 50(1-2), 1994: 51(1-2), 1995: 52(1-2), 1995: 53(1-2), 1995: 54(1-2), 1996: 55(1-2), 1996: 56(1-2), 1996: 57(1-2), 1997: 58(1-2), 1997: 59(1-2), 1997: 60(1-2), 1998: 61(1-2), 1998: 62(1-2), 1998: 63(1-2), 1999: 64(1-2), 1999: 65(1-2), 1999: 66(1-2), 2000: 67(1-2), 2000: 68(1-2), 2000: 69(1-2), 2001: 70(1-2), 2001: 71(1-2), 2001: 72(1-2), 2002: 73(1-2), 2002: 74(1-2), 2002: 75(1-2), 2003: 76(1-2), 2003: 77(1-2), 2003: 78(1-2), 2004: 79(1-2), 2004: 80(1-2), 2004: 81(1-2), 2005: 82(1-2), 2005: 83(1-2), 2006: 84(1-2), 2006: 85(1-2), 2007: 86(1-2), 2007: 87(1-2), 2008: 88(1-2), 2008: 89(1-2), 2008: 90(1-2), 2009: 91(1-2), 2009: 92(1-2), 2009: 93(1-2), 2009: 94(1-2), 2009: 95(1-2), 2009: 96(1-2), 2010: 97(1-2), 2010: 98(1-2), 2010: 99(1-2), 2011: 100(1-2), 2011: 101(1-2), 2011: 102(1-2), 2012: 103(1, 3), 2013: 104(1-3), 2014: 105(1-2), 2015: 106(1-3), 2016: 107(1-3), 2017: 108(1-3), 2018: 109(1-3), 2019: 110(1-3), 2020: 111(1-3), 2021: 112(1-3), 2022: 113(1-3), 2023: 114(1-3), 2024: 115(1-3), 2025: 116(1-3), 2026: 117(1)
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Library of Congress
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Preserved
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2025-04-07
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109 (1 to 3); 110 (1 to 3); 111 (1 to 3); 112 (1 to 3); 113 (1 to 3); 114 (1 to 3); 115 (1 to 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); 6; 7; 8; 9; 11 (2, 3); 12 (1-2); 13 (2, 3); 14 (1 to 3); 15 (1 to 3); 16 (1 to 3); 17 (1 to 3); 18 (1 to 3); 19 (1 to 3); 58 (1); 59; 61; 62; 63; 64; 65; 66; 67; 68; 69; 71; 72; 73; 74; 75; 76; 77; 78; 79; 81; 82; 83; 84; 85; 86; 87; 88; 89; 91; 92; 93; 94; 95; 96; 97; 98; 99; 111 (2, 3); 112 (1 to 3); 113 (1 to 3); 114 (1 to 3); 115 (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 : 1 (1); 6; 7; 8; 9; 11 (2, 3); 12 (1-2); 13 (2, 3); 14 (1 to 3); 15 (1 to 3); 16 (1 to 3); 17 (1 to 3); 18 (1 to 3); 19 (1 to 3); 58 (1); 59; 61; 62; 63; 64; 65; 66; 67; 68; 69; 71; 72; 73; 74; 75; 76; 77; 78; 79; 81; 82; 83; 84; 85; 86; 87; 88; 89; 91; 92; 93; 94; 95; 96; 97; 98; 99; 111 (2, 3); 112 (1 to 3); 113 (1 to 3); 114 (1 to 3); 115 (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 : 62 (1-2); 70; 71; 72; 73; 74; 75; 76; 77; 78; 79; 80; 81; 82; 83; 84; 85; 86; 87; 88; 89; 90; 91; 92; 93; 94; 95; 96; 97; 98; 99; 100; 101; 102; 103 (2, 3); 104 (1-3); 105 (1-3); 106 (1-3); 107 (1-3); 108 (1-3); 109 (1-3); 110 (1, 2)
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