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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 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 5); 32 (, 2, 3, 6, 9 to 12); 33 (, 1, 2, 6, 7, 10 to 12); 34 (, 1 to 12); 35 (, 1 to 12); 36 (, 1 to 12); 37 (, 1 to 12); 38 (, 1 to 12); 39 (, 1 to 12); 40 (, 1 to 6, 9 to 12); 41 (, 1 to 12); 42 (, 1 to 12); 43 (, 4, 6, 9 to 12); 44 (, 1 to 12); 45 (, 1 to 12); 46 (, 1 to 9, 11, 12); 47 (, 1 to 10, 12); 48 (, 1 to 12); 49 (, 1 to 12); 50 (, 1 to 12); 51 (, 1 to 12); 52 (, 1 to 12); 53 (, 1 to 12); 54 (, 2 to 5, 7, 8, 12); 55 (, 10); 56 (, 1); 57 (, 3, 4); 58 (, 1 to 12); 59 (, 1 to 12); 60 (, 1 to 12); 61 (, 1 to 4, 6 to 12); 62 (, 1 to 12); 63 (, 1 to 10); 64 (, 10, 12); 65 (, 1 to 12); 66 (, 1 to 12); 67 (, 4 to 12); 68 (, 1 to 12); 69 (, 1, 2, 5 to 9, 11, 12); 70 (, 1 to 9, 11, 12); 71 (, 1 to 12, 15, 16); 72 (, 1 to 8, 11, 12); 73 (, 2, 4, 5, 9 to 12); 74 (, 1 to 12); 75 (, 1 to 12); 76 (, 1 to 8, 11, 12); 77 (, 2, 3, 7 to 9); 78 (, 1 to 4, 6); 79 (, 6); 80 (, 1); 1996; 1997; 1998; 1999; 2001; 2002; 2003; 2004; 2005; 2006; 2007; 2008; 2009; 2010; 2011; 2012; 2013; 2014; 2015; 2016; 2017; 2018; 2019; 2020; 2021; 2022; 2023; 2024
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Internet Archive
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Preserved
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2025-08-08
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1 to 57
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Portico
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Preserved
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2026-02-12
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Preserved : 1979: 1(1-6), 1980: 2(1-6), 1981: 3(1-6, S), 1982: 4(1-6), 1983: 5(1-6), 1984: 6(1-4), 1985: 7(1-6), 1986: 8(1-6), 1987: 9(1-6), 1988: 10(1-2, Special Issue ecials_2, s_2-6), 1989: 11(1-s_7), 1990: 12(1-s_8), 1991: 13(1-s_11), 1992: 14(1-6), 1992: 15(1-6), 1993: 16(1-6), 1993: 17(1-6), 1994: 18(1-6), 1994: 19(1-6), 1995: 20(1-6), 1995: 21(1-6), 1996: 22(1-6), 1996: 23(1-6), 1997: 24(1-6), 1997: 25(1-6), 1998: 26(1-6), 1998: 27(1-6), 1999: 28(1-6), 1999: 29(1-6), 2000: 30(1-6), 2000: 31(1-6), 2001: 32(1-12), 2001: 33(1-12), 2002: 34(1-12), 2002: 35(1-12), 2003: 36(1-12), 2003: 37(1-12), 2004: 38(1-12), 2004: 39(1-12), 2005: 40(1-12), 2005: 41(1-12), 2006: 42(1-12), 2006: 43(1-12), 2007: 44(1-12), 2007: 45(1-12), 2008: 46(1-12), 2008: 47(1-12), 2009: 48(1-12), 2009: 49(1-12), 2010: 50(1-12), 2010: 51(1-12), 2011: 52(1-12), 2011: 53(1-12), 2012: 54(1-12), 2012: 55(1-12), 2013: 56(1-12), 2013: 57(1-12), 2014: 58(1-12), 2014: 59(1-12), 2015: 60(1-12), 2015: 61(1-12), 2016: 62(1-12), 2016: 63(1-12), 2016/2017: 64(1-12), 2017: 65(1-12), 2018: 66(1-12), 2018: 67(1-12), 2019: 68(1-12), 2019: 69(1-12), 2020: 70(1-12), 2020: 71(1-12, 15-16), 2021: 72(1-12), 2021: 73(1-12), 2022: 74(1-12), 2022: 75(1-12), 2023: 76(1-12), 2023: 77(1-12), 2024: 78(1-7), 2024: 79(1-6), 2025: 80(1-6), 2025: 81(1-6), 2026: 82(1)
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CLOCKSS Archive
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Preserved
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2026-02-09
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46 to 61
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LOCKSS Archive
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Preserved
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2026-02-09
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46 to 62, 64, 66, 68, 70, 72, 74, 76, 78
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CLOCKSS Archive
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In Progress
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2026-02-09
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62, 64, 66, 68, 70, 72, 74, 76, 78, 80
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LOCKSS Archive
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In Progress
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2026-02-09
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80
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Portico
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Preserved
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2026-02-12
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Preserved : 1997: 24(6), 1997: 25(1, S 1, 2, S 2, 3, S 3, 4-6), 1998: 26(1-6), 1998: 27(1, S 1, 2-6), 1999: 28(1, S 1, 2, S 2, 3-6), 1999: 29(1-5), 2000: 30(1, S 1, 2, S 2, 3-6), 2000: 31(1, S 1, 2, S 2, 3, S 3, 4, S 4, S 5, 6), 2000/2001: 32(1, S 1, 2, S 2, 3-6, 8-11), 2001: 33(1, S 1, 2, S 2, 3, S 3, 4-5, 9-12), 2001/2002: 34(1, S 1, 2, S 2, 3, S 3, 4-5, S 5, 6-12), 2002: 35(1, S 1, 2, S 2, 3-6, 8-9, 11-12), 2003: 36(1, S 1, 2, S 2, 3, S 3, 4-12), 2003: 37(1, S 1, 2-3, S 3, 4, S 4, 5-12), 2004: 38(S 1, S 2, S 3, S 4, 5, S 5, 6-10, 12), 2004: 39(1, S 1, 2, S 2, S 3, 4, S 4, 5, S 5, 7-8, 11-12), 2005: 40(1, S 1, 2, S 2, 3, S 3, 4, S 4, 5, S 5, S 6, 7-8, 10), 2005: 41(S 1, S 2, 3, S 3, 4, S 4, S 5, 6, S 6, 7, S 7, 8, S 8, 10-12), 2005/2006: 42(1, S 1, 2, S 2, 3, S 3, 4, S 4, 5-12), 2006: 43(1, S 1, 2, S 2, 3, S 3, 4, S 4, 6-12), 2006/2007: 44(1, S 1, 2, S 2, 3, S 3, 4-12), 2007: 45(1, S 1, 2, S 2, 3, S 3, 4, S 4, 6-12), 2007/2008: 46(S 1, 2, S 2, 3, S 3, 4, S 4, 5, S 5, 6, 9-12), 2008: 47(S 1, S 2, 3, S 3, 6, 8-12), 2008/2009: 48(1, S 1, 2, S 2, 3, S 3, S 4, 5-12), 2009: 49(1, S 1, 2, 4-7, 9-12), 2010: 50(1, S 1, S 2, 3, S 3, 4-8, 11-12), 2010: 51(1, S 1, S 2, 3-4, 8, 11-12)
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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 to 9, 11, 12); 6 (suppl_2, 1 to 9, 11, 12); 7 (Supplement_1, 1 to 9, 11, 12); 8 (Supplement_1, 1 to 6); 38 (4); 44 (Supplement_1, 1 to 9, 11, 12); 45 (Supplement_1, 1 to 9, 11, 12); 46 (Supplement_1, 1 to 9, 11, 12); 47 (Supplement_1, 1 to 9, 11, 12); 48 (Supplement_1, 1 to 9, 11, 12); 49 (Supplement_1, 1 to 9, 11, 12); 51 (Supplement_1, 1 to 9, 11, 12); 52 (suppl_1, 1 to 9, 11, 12); 53 (suppl_1, 1 to 9, 11, 12); 54 (suppl_1, 1 to 9, 11, 12); 55 (suppl_1, 1 to 9, 11, 12); 56 (1 to 9, 11, 12); 57 (suppl_1, 1 to 9, 11, 12); 58 (suppl_1, 1 to 9, 11, 12); 59 (suppl_1, 1 to 9, 11, 12); 61 (suppl_1, 1 to 9, 11, 12); 62 (suppl_1, 1 to 9, 11, 12); 63 (suppl_1, 1 to 9, 11, 12); 64 (suppl_1, 1 to 9, 11, 12); 65 (suppl_1, 1 to 9, 11, 12); 66 (suppl_1, 1 to 9, 11, 12); 67 (suppl_1, 1 to 9, 11, 12); 68 (Supplement_1, 1 to 9, 11, 12); 69 (Supplement_1, 1 to 9, 11, 12); 71 (Supplement_1, 1 to 9, 11, 12, 15, 16); 72 (Supplement_1, 1 to 8, 11, 12); 73 (Supplement_1, 1, 2, 4, 5, 8, 9, 11, 12); 74 (Supplement_1, 1 to 7, 9, 11, 12); 75 (Supplement_1, 1 to 9, 11, 12); 76 (1 to 9, 11, 12); 77 (Supplement_1, 1 to 9, 11, 12); 78 (Supplement_1, 1 to 7); 79 (Supplement_3, 1, 2, 4 to 6); 81 (Supplement_1, 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 : ; 5 (1 to 9, 11, 12); 6 (suppl_2, 1 to 9, 11, 12); 7 (Supplement_1, 1 to 9, 11, 12); 8 (Supplement_1, 1 to 6); 38 (4); 44 (Supplement_1, 1 to 9, 11, 12); 45 (Supplement_1, 1 to 9, 11, 12); 46 (Supplement_1, 1 to 9, 11, 12); 47 (Supplement_1, 1 to 9, 11, 12); 48 (Supplement_1, 1 to 9, 11, 12); 49 (Supplement_1, 1 to 9, 11, 12); 51 (Supplement_1, 1 to 9, 11, 12); 52 (suppl_1, 1 to 9, 11, 12); 53 (suppl_1, 1 to 9, 11, 12); 54 (suppl_1, 1 to 9, 11, 12); 55 (suppl_1, 1 to 9, 11, 12); 56 (1 to 9, 11, 12); 57 (suppl_1, 1 to 9, 11, 12); 58 (suppl_1, 1 to 9, 11, 12); 59 (suppl_1, 1 to 9, 11, 12); 61 (suppl_1, 1 to 9, 11, 12); 62 (suppl_1, 1 to 9, 11, 12); 63 (suppl_1, 1 to 9, 11, 12); 64 (suppl_1, 1 to 9, 11, 12); 65 (suppl_1, 1 to 9, 11, 12); 66 (suppl_1, 1 to 9, 11, 12); 67 (suppl_1, 1 to 9, 11, 12); 68 (Supplement_1, 1 to 9, 11, 12); 69 (Supplement_1, 1 to 9, 11, 12); 71 (Supplement_1, 1 to 9, 11, 12, 15, 16); 72 (Supplement_1, 1 to 8, 11, 12); 73 (Supplement_1, 1, 2, 4, 5, 8, 9, 11, 12); 74 (Supplement_1, 1 to 7, 9, 11, 12); 75 (Supplement_1, 1 to 9, 11, 12); 76 (1 to 9, 11, 12); 77 (Supplement_1, 1 to 9, 11, 12); 78 (Supplement_1, 1 to 7); 79 (Supplement_3, 1, 2, 4 to 6); 81 (Supplement_1, 1)
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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 : 7; 69 (12)
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Library of Congress
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Preserved
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2025-04-07
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71 (16)
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British Library
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Preserved
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2019-09-18
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Preserved : 50 (2), 57 (4), 58 (1 to 12), 59 (1 to 4; 6; 8 to 12; S1; S4 to S7), 60 (1 to 12; S1 to S3), 61 (1 to 4; 6 to 12; S1 to S8), 62 (1 to 6; 9 to 12; S1 to S4), 63 (1 to 10; S1 to S3), 64 (10), 65 (3 to 5; 9), 66 (1; 5; 10 to 12; S1; S4), 67 (2 to 11; S1 to S2), 68 (1 to 3; 5; 7 to 8; 11; S1; S3), 69 (5)
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