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Scholars Portal
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Preserved
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2026-03-19
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Preserved : 1 (1 to 4); 2 (1 to 4); 3 (1 to 4); 4 (1 to 4); 5 (1 to 4); 6 (1 to 4); 7 (1 to 4); 8 (1 to 4); 9 (1 to 4); 10 (1 to 4); 11 (1 to 4); 12 (1 to 4); 13 (1 to 4); 14 (1 to 4); 15 (1 to 4); 16 (1 to 4); 17 (1 to 4); 18 (1 to 4); 19 (1 to 4); 20 (1 to 4); 21 (1 to 4); 22 (1 to 4); 23 (1 to 4); 24 (1 to 4); 25 (1 to 4); 26 (1 to 4); 27 (1 to 4); 28 (1 to 4); 29 (:, 1 to 4); 30 (1 to 4); 31 (1 to 4); 32 (1 to 4); 33 (1 to 4); 34 (1 to 4); 35 (1 to 4); 36 (1 to 4); 37 (1 to 4); 38 (1 to 4); 39 (1 to 4); 40 (2 to 4); 41 (1 to 4); 42 (1 to 4); 43 (1 to 4)
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Internet Archive
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Preserved
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2025-08-08
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1 to 41
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Technische Informationsbibliothek
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Preserved
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2026-01-13
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vol.23:3-4;vol.24:1-4;vol.25:1-4;vol.26:1-4;vol.27:1-4;vol.28:1-4;vol.29:1-4;vol.30:1-4;vol.31:1-4;vol.32:1-4;vol.33:1-4;vol.34:1-4;vol.35:1-4;vol.36:1-4;vol.37:1-4;vol.38:1-4;vol.39:1-4;vol.40:1-4;vol.41:1-4;vol.42:1-4;vol.43:1-4
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Portico
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Preserved
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2026-04-23
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Preserved : 1974/1975: 1(1-4), 1975/1976: 2(1-4), 1976/1977: 3(1-4), 1977/1978: 4(1-4), 1978/1979: 5(1-4), 1979/1980: 6(1-4), 1980/1981: 7(1-4), 1981/1982: 8(1-4), 1982/1983: 9(1-4), 1983/1984: 10(1-4), 1984/1985: 11(1-4), 1985/1986: 12(1-4), 1986/1987: 13(1-4), 1987/1988: 14(1-4), 1988/1989: 15(1-4), 1989/1990: 16(1-4), 1990/1991: 17(1-4), 1991/1992: 18(1-4), 1992/1993: 19(1-4), 1993/1994: 20(1-4), 1994/1995: 21(1-4), 1995/1996: 22(1-4), 1996/1997: 23(1-4), 1997/1998: 24(1-4), 1998/1999: 25(1-4), 2000: 26(1-4), 2001: 27(1-4), 2002: 28(1-4), 2003: 29(1-4), 2004: 30(1-4), 2005: 31(1-4), 2006: 32(1-4), 2007: 33(1-4), 2008: 34(1-4), 2009: 35(1-4), 2010: 36(1-4), 2011: 37(1-4), 2012: 38(1-4), 2013: 39(1-4), 2014: 40(1-4), 2015: 41(1-4), 2016: 42(1-4), 2017: 43(1-4)
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CLOCKSS Archive
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Preserved
|
2026-04-13
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17 to 43
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Portico
|
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Preserved
|
2026-04-23
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Preserved : 2003: 29(3)
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LOCKSS Archive
|
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Preserved
|
2026-04-13
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1 to 8, 31
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Portico
|
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Preserved
|
2026-04-23
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Preserved : 2007: 33(1)
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Portico
|
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Preserved
|
2026-04-23
|
|
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Preserved : 2014: 40(1-4), 2015: 41(1-4), 2016: 42(1-4), 2017: 43(1-4), 2018: 44(1-4), 2019: 45(1-4), 2020: 46(1-4), 2021: 47(1-4), 2022: 48(1-4), 2023: 49(1-4), 2024: 50(1-4), 2025: 51(1-4), 2026: 52(1-2)
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CLOCKSS Archive
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Preserved
|
2026-04-13
|
|
|
1
|
|
|
CLOCKSS Archive
|
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In Progress
|
2026-04-13
|
|
|
2 to 8
|
|
|
LOCKSS Archive
|
|
In Progress
|
2026-04-13
|
|
|
9
|
|
|
National Digital Preservation Program, China
|
|
Preserved
|
2025-10-23
|
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|
Preserved : 3 (1 to 4); 4 (1 to 4); 23 (3, 4); 24 (1 to 4); 25 (1 to 4); 26 (1 to 4); 27 (1 to 4); 28 (1 to 4); 29 (1 to 4); 31 (1 to 4); 32 (1 to 4); 33 (1 to 4); 34 (1 to 4); 35 (1 to 4); 36 (1 to 4); 37 (1 to 4); 38 (1 to 4); 39 (1 to 4); 41 (1 to 3); 42 (1 to 4); 43 (1 to 4)
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|
|
National Digital Preservation Program, China
|
|
Preserved
|
2025-12-04
|
|
|
Preserved : 3 (1 to 4); 4 (1 to 4); 23 (3, 4); 24 (1 to 4); 25 (1 to 4); 26 (1 to 4); 27 (1 to 4); 28 (1 to 4); 29 (1 to 4); 31 (1 to 4); 32 (1 to 4); 33 (1 to 4); 34 (1 to 4); 35 (1 to 4); 36 (1 to 4); 37 (1 to 4); 38 (1 to 4); 39 (1 to 4); 41 (1 to 3); 42 (1 to 4); 43 (1 to 4)
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|
|
National Digital Preservation Program, China
|
|
Preserved
|
2025-10-23
|
|
|
Preserved : 5 (1 to 4); 33 (1); 44 (2 to 4); 45 (1 to 4); 46 (1, 2-3, 4); 47 (1 to 4); 48 (1 to 4); 49 (2 to 4); 51 (1 to 3)
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|
|
National Digital Preservation Program, China
|
|
Preserved
|
2025-12-04
|
|
|
Preserved : 5 (2 to 4); 33 (1); 44 (2 to 4); 45 (1 to 4); 46 (1, 2-3, 4); 47 (1 to 4); 48 (1 to 4); 49 (2 to 4); 51 (1 to 3)
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|
|
National Library of the Netherlands
|
|
Preserved
|
2024-12-15
|
|
|
Preserved : 32 (1, 3, 4); 33 (1-4)
|
|
|
British Library
|
|
Preserved
|
2019-09-18
|
|
|
Preserved : 44 (4), 45 (1 to 2)
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