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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 to 6); 2 (, 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 to 6); 26 (, 1, 3 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 to 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 6); 50 (, 1 to 6); 51 (, 1 to 6); 52 (, 1 to 6); 53 (, 1 to 6); 54 (, 1 to 6); 55 (, 1, 4 to 6); 56 (, 1 to 3, 5, 6); 57 (, 1 to 6); 58 (, 1 to 6); 59 (, 2 to 6); 60 (, 1 to 6); 61 (, 1 to 6); 62 (, 1 to 6); 63 (, 1 to 6); 64 (, 1 to 6); 65 (, 1 to 6); 66 (, 1 to 6); 67 (, 1 to 6); 68 (, 1 to 6); 69 (, 1 to 6); 70 (, 1 to 6); 71 (, 1 to 6); 72 (, 1 to 6); 73 (, 1 to 6); 74 (, 1 to 6); 75 (, 1 to 6); 76 (, 1 to 6); 1981; 1982; 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
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CLOCKSS Archive
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Preserved
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2026-02-09
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21 to 26, 32 to 38
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Internet Archive
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Preserved
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2025-08-08
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9 to 46
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Portico
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Preserved
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2026-02-12
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Preserved : 1995: 21(1-6), 1995: 22(1-6), 1996: 23(1-6), 1996: 24(1-6), 1997: 25(1-2), 1997: 26(1, 3-6)
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Portico
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Preserved
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2026-02-12
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Preserved : 2000: 32(1-6), 2001: 33(1-6), 2001: 34(1-6, ), 2002: 35(1-6), 2002: 36(1-6), 2003: 37(1-6), 2003: 38(1-6, S)
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Portico
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Preserved
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2026-02-12
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Preserved : 1981: 1(1-6), 1982: 2(1-6), 1983: 3(1-6), 1984: 4(1, S 1, 2, S 2, 3-6), 1985: 5(1-6), 1986: 6(1-6), 1987: 7(1, S 1, 2-6), 1988: 8(1-6), 1989: 9(1-6), 1989: 10(1-6), 1990: 11(1-6), 1990: 12(1-6), 1991: 13(1-6), 1991: 14(1-4, S 4, 5-6), 1992: 15(1-6), 1992: 16(1-4, S 4, 5-6), 1993: 17(1-6), 1993: 18(1-6, S 7), 1994: 19(1-6), 1994: 20(1-6, S 7), 1995: 21(1-6), 1995: 22(1-4, S 4, 5-6), 1996: 23(1-6), 1996: 24(1-6), 1997: 25(1-6), 1997: 26(1-3, S 3, 4-6), 1998: 27(1-6), 1998: 28(1-6), 1999: 29(1-6), 1999: 30(1-6), 2000: 31(1-6), 2000: 32(1-6), 2001: 33(1-6), 2001: 34(1-6), 2002: 35(1-6), 2002: 36(1, S 1, 2-5, 5, B, 6), 2003: 37(1-6), 2003: 38(1-4, S 4, 5-6), 2004: 39(1-6), 2004: 40(1-4, S 4, 5-6), 2005: 41(1-6), 2005: 42(1, S 1, 2-6), 2006: 43(1, S 1, 2-6), 2006: 44(1, S 1, 2-6), 2007: 45(1-6), 2007: 46(1, S 1, 2-6), 2008: 47(1-6), 2008: 48(1, S 1, 2-6), 2009: 49(1-5, S 5, 6), 2009: 50(1-4, S 4, 5-6), 2010: 51(1-6), 2010: 52(1-6), 2011: 53(1-6), 2011: 54(1, S 1, 2-6), 2012: 55(1-6), 2012: 56(1, S 1, S1, 2-6), 2013: 57(1-6), 2013: 58(1, S 1, 2-6), 2014: 59(1-6), 2014: 60(1, S1, 2-6), 2015: 61(1-6), 2015: 62(1, S1, 2-6), 2016: 63(1-6), 2016: 64(1, S1, 2-6), 2017: 65(1-6), 2017: 66(1, S 1, 2-6), 2018: 67(1-6), 2018: 68(1, S1, 2-6), 2019: 69(1-6), 2019: 70(1, S1, 2-6), 2020: 71(1-6), 2020: 72(1, S1, 2-6), 2021: 73(1, S1, 2-6), 2021: 74(1, S1, 2-6), 2022: 75(1-6), 2022: 76(1, S1, 2-6)
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CLOCKSS Archive
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Preserved
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2026-02-09
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2, 13 to 76
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Portico
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Preserved
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2026-02-12
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Preserved : 2015: 61(1-6), 2015: 62(1-6), 2016: 63(1-6), 2016: 64(1-6), 2017: 65(2-6), 2017: 66(1-6), 2018: 67(1-6), 2018: 68(1, S1, 2-6), 2019: 69(1-6), 2019: 70(1-6), 2020: 71(1-6), 2020: 72(1-6), 2021: 73(1-6), 2021: 74(1, S1, 2-6), 2022: 75(1-6), 2022: 76(1, S1, S 1, 2-6), 2023: 77(1-6), 2023: 78(1, S 1, Abstracts S, 2-6), 2024: 79(1-6), 2024: 80(1, S 1, Abstracts S, 2-6), 2025: 81(1, 3-6), 2025: 82(1, S 1, Abstracts S, 2-6), 2026: 83(1-2)
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CLOCKSS Archive
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Preserved
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2026-02-09
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73 to 83
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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 : 3 (1 to 6); 4 (S4, 1 to 6); 5 (S4, 1 to 6); 6 (, 1 to 6); 7 (S1, 1 to 6); 23 (1 to 6); 24 (1 to 6); 25 (1 to 6); 26 (S3, 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 (S1, 1 to 4 to 6); 37 (1 to 6); 38 (S4, 1 to 6); 39 (1 to 6); 41 (1 to 6); 42 (S1, 1 to 6); 43 (S1, 1 to 6); 44 (S1, 1 to 6); 45 (1 to 6); 46 (S1, 1 to 6); 47 (1 to 6); 48 (S1, 1 to 6); 49 (S5, 1 to 6); 51 (1 to 6); 52 (S1, 1 to 6); 53 (1 to 6); 54 (S1, 1 to 6); 55 (1 to 6); 56 (S1, 1 to 6); 57 (1 to 6); 58 (S1, 1 to 6); 59 (1 to 6); 61 (1 to 6); 62 (, 1 to 6); 63 (1 to 6); 64 (, 1 to 6); 65 (1 to 6); 66 (S1, 1 to 6); 67 (1 to 6); 68 (S1, 1 to 6); 69 (1 to 6); 71 (1 to 6); 72 (S1, 1 to 6); 73 (S1, 1 to 6); 74 (S1, 1 to 6); 75 (1 to 6); 76 (S1, 1 to 6)
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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 : 3 (1 to 6); 4 (S4, 1 to 6); 5 (S4, 1 to 6); 6 (, 1 to 6); 7 (S1, 1 to 6); 23 (1 to 6); 24 (1 to 6); 25 (1 to 6); 26 (S3, 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 (S1, 1 to 4 to 6); 37 (1 to 6); 38 (S4, 1 to 6); 39 (1 to 6); 41 (1 to 6); 42 (S1, 1 to 6); 43 (S1, 1 to 6); 44 (S1, 1 to 6); 45 (1 to 6); 46 (S1, 1 to 6); 47 (1 to 6); 48 (S1, 1 to 6); 49 (S5, 1 to 6); 51 (1 to 6); 52 (S1, 1 to 6); 53 (1 to 6); 54 (S1, 1 to 6); 55 (1 to 6); 56 (S1, 1 to 6); 57 (1 to 6); 58 (S1, 1 to 6); 59 (1 to 6); 61 (1 to 6); 62 (, 1 to 6); 63 (1 to 6); 64 (, 1 to 6); 65 (1 to 6); 66 (S1, 1 to 6); 67 (1 to 6); 68 (S1, 1 to 6); 69 (1 to 6); 71 (1 to 6); 72 (S1, 1 to 6); 73 (S1, 1 to 6); 74 (S1, 1 to 6); 75 (1 to 6); 76 (S1, 1 to 6)
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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 : 21 (1-6); 22 (1-3-5, 6); 23 (1-6); 24 (1-6); 25 (1, 2); 26 (1, 3-6); 32 (1-6); 33 (1-6); 34 (1-3-5, 6); 35 (1-6); 36 (1-6); 37 (1-6); 38 (S, 1-6); 44 (3)
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