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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 27 (1 to 3); 28 (, 1 to 3); 29 (, 1 to 3); 30 (, 1 to 3); 31 (, 1 to 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 to 3); 39 (, 1 to 3); 40 (, 1 to 3); 41 (, 1 to 3); 42 (, 1 to 3); 43 (, 1 to 3); 44 (, 1 to 3); 45 (, 1 to 4); 46 (, 1 to 4); 47 (, 1 to 4); 48 (, 1 to 4); 49 (, 1 to 4); 50 (, 1 to 4); 51 (, 1 to 4); 52 (, 2 to 4); 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
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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 : 1 (1, 2); 2 (1, 2); 3 (1, 2); 4 (1, 2); 5 (1, 2); 6 (1-3); 7 (1, 2); 8 (1-4); 9 (1-4); 10 (1-4); 11 (1-4); 12 (1-4); 13 (1-4); 14 (1-4); 15 (1, 2, 4); 16 (1-4); 17 (1-4); 18 (1-4); 19 (1-4); 20 (1, 2); 21 (1, 2); 22 (1-3); 23 (1, 2); 24 (1, 2); 25 (1, 2); 26 (1, 2); 27 (1-3); 28 (1-3); 29 (1-3); 30 (1-3); 31 (1-3); 32 (1-3); 33 (1-3); 34 (1-3); 35 (1-3); 36 (1-3); 37 (1-3); 38 (1-3); 39 (1-3); 40 (1-3); 41 (1-3); 42 (1-3); 43 (1-3); 44 (1-3); 45 (1-4); 46 (1-4); 47 (1-3)
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Portico
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Preserved
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2026-02-12
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Preserved : 1964/1965: 1(1-2), 1966/1967: 2(1-2), 1968/1969: 3(1-2), 1970/1971: 4(1-2), 1972/1973: 5(1-2), 1974/1975: 6(1-2), 1976: 7(1-2), 1977: 8(1-4), 1978: 9(1-4), 1979: 10(1-4), 1980: 11(1-4), 1981: 12(1-4), 1982/1983: 13(1-4), 1983/1984: 14(1-4), 1984/1985: 15(1-4), 1986: 16(1-4), 1987: 17(1-4), 1989: 18(1-4), 1990: 19(1-4), 1991: 20(1-2), 1992/1993: 21(1-2), 1994: 22(1-3), 1995: 23(1-2), 1996: 24(1-2), 1997: 25(1-2), 1998: 26(1-2), 1999: 27(1-3), 2000: 28(1-3), 2001: 29(1-3), 2002: 30(1-3), 2003: 31(1-3), 2004: 32(1-3), 2005: 33(1-3), 2006: 34(1-3), 2007: 35(1-3), 2008: 36(1-3), 2009: 37(1-3), 2010: 38(1-3), 2011: 39(1-3), 2012: 40(1-3), 2013: 41(1-3), 2014: 42(1-3), 2015: 43(1-3), 2016: 44(1-3), 2017: 45(1-4), 2018: 46(1-4), 2019: 47(1-4), 2020: 48(1-4), 2021: 49(1-4), 2022: 50(1-4), 2023: 51(1-4), 2024: 52(1-4)
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CLOCKSS Archive
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Preserved
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2026-02-09
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1 to 53
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Portico
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Preserved
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2026-02-12
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Preserved : 2026: 53, 2026: 54
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LOCKSS Archive
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In Progress
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2026-02-09
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1 to 30, 38
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CLOCKSS Archive
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In Progress
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2026-02-09
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1 to 32, 34, 38, 47 to 52
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Portico
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Preserved
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2026-02-12
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Preserved : 1964: 1(1-2), 1965/1966: 2(1-2), 1968/1969: 3(1-2), 1970/1971: 4(1-2), 1972/1973: 5(1-2), 1974/1975: 6(1-3), 1976: 7(1-2), 1976/1977: 8(1-4), 1978: 9(1-4), 1979: 10(1-4), 1980: 11(1-4), 1981: 12(1-4), 1982/1983: 13(1-4), 1983/1984: 14(1-4), 1984/1985: 15(1-4), 1986: 16(1-4), 1987: 17(1-4), 1989: 18(1-4), 1990: 19(1-4), 1991: 20(1-2), 1992/1993: 21(1-2), 1994: 22(1-3), 1995: 23(1-2), 1996: 24(1-2), 1997: 25(1-2), 1998: 26(1-2), 1999: 27(1-3), 2000: 28(1-3), 2001: 29(1-3), 2002: 30(1-3), 2003: 31(1-3), 2004: 32(1-3), 2005: 33(1-3), 2006: 34(1-3), 2007: 35(1-3), 2008: 36(1-3), 2009: 37(1-3), 2010: 38(1-3), 2011: 39(1-3), 2012: 40(1-3), 2013: 41(1-3), 2014: 42(1-3), 2015: 43(1-3), 2016: 44(1-3), 2017: 45(1-4), 2018: 46(1-4), 2019: 47(1-4), 2020: 48(1-4), 2021: 49(1-4), 2022: 50(1-4), 2023: 51(1-4), 2024: 52(1-4)
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LOCKSS Archive
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Preserved
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2026-02-09
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31 to 37, 39 to 52
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CLOCKSS Archive
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Preserved
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2026-02-09
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33, 35 to 37, 39 to 46
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Library of Congress
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Preserved
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2025-04-07
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38 (1 to 3); 39 (1 to 3); 40 (1 to 3); 41 (1 to 3); 42 (1 to 3); 43 (1 to 3); 44 (1 to 3); 45 (1 to 4); 46 (1 to 4); 47 (1 to 4); 48 (1 to 4); 49 (1 to 4); 50 (1 to 4); 51 (1 to 4); 52 (1 to 3)
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