|
|
Scholars Portal
|
|
Preserved
|
2025-09-02
|
|
|
Preserved : 8 (2); 13 (, 2); 30 (, 3); 34 (, 2); 43 (, 1); 45 (, 1 to 4); 46 (, 1 to 5); 47 (, 2 to 5); 48 (, 1 to 5); 49 (, 1 to 4); 50 (, 5); 1977; 1982; 1999; 2003; 2012; 2014; 2015; 2016; 2017; 2018; 2019
|
|
|
Internet Archive
|
|
Preserved
|
2025-08-08
|
|
|
to 31
|
|
|
Portico
|
|
Preserved
|
2026-02-12
|
|
|
Preserved : 1970: 1(1-4), 1971: 2(1-4), 1972: 3(1-4), 1973: 4(1-2, 4), 1974: 5(1-3), 1975: 6(1-3), 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(1-4), 1985: 16(1-4), 1986: 17(1-4), 1987: 18(1-4), 1988: 19(1-4), 1989: 20(1-4), 1990: 21(1-4), 1991: 22(1-4), 1992: 23(1-4), 1993: 24(1-4), 1994: 25(1-4), 1995: 26(2-4), 1996: 27(1-4), 1997: 28(1-4), 1998: 29(1-4), 1999: 30(1-4), 2000: 31(1-4), 2001: 32(1-4), 2002: 33(1-4), 2003: 34(1-3), 2004: 35(1-4), 2005: 36(1-4), 2006: 37(1-4), 2007: 38(1-4), 2008: 39(1-4), 2009: 40(3-4), 2010: 41(1, 3-4), 2011: 42(1-3), 2012: 43(1-4), 2013: 44(1-4)
|
|
|
Portico
|
|
Preserved
|
2026-02-12
|
|
|
Preserved : 2014: 45(2-4), 2015: 46(1-5), 2016: 47(1-3, 5), 2017: 48(1-5), 2017/2018: 49(1-5), 2018/2019: 50(1-5), 2020: 51(1-5), 2020/2021: 52(1-5), 2021/2022: 53(1-5), 2022/2023: 54(1-5), 2023/2024: 55(1-5), 2024/2025: 56(1-4)
|
|
|
Library of Congress
|
|
Preserved
|
2025-04-07
|
|
|
41 (4); 43 (1); 50 (1 to 3, 5); 51 (1 to 5); 52 (1 to 5); 53 (1 to 5); 54 (1, 2, 4, 5); 55 (1 to 5); 56 (1)
|
|
|
National Library of the Netherlands
|
|
Preserved
|
2024-12-15
|
|
|
Preserved : 1 (1-4); 2 (1-4); 3 (1-4); 4 (1, 2, 4); 5 (1-3); 6 (1-3); 7 (1-4); 8 (1-4); 9 (1-4); 10 (1-4); 11 (1-4); 12 (1-4); 13 (1-4); 14 (1-4); 15 (1-4); 16 (1-4); 17 (1-4); 18 (1-4); 19 (1-4); 20 (1-4); 21 (1-4); 22 (1-4); 23 (1-4); 24 (1-4); 25 (1-4); 26 (2-4); 27 (1-4); 28 (1, 3, 4); 29 (1-4); 30 (1-4); 31 (1-4); 32 (1-4); 33 (1-4); 34 (1-3); 35 (1-4); 36 (1-4); 37 (1-4); 38 (1-4); 39 (1-4); 40 (1-4); 41 (1, 3); 42 (1-4)
|
