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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); 4; 5 (2 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 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 8); 22 (1 to 8); 23 (Suppl, 1 to 8); 24 (Suppl., 1 to 8); 25 (Suppl., 1 to 8); 26 (Suppl., 1, 2, 4 to 8); 27 (Suppl., 1 to 6); 28 (1 to 6); 29 (Suppl, 1, 2-3, 4 to 6); 30 (Suppl, 1 to 6); 31 (Suppl, 1 to 6); 32 (1 to 6); 33 (Suppl, 1 to 6); 34 (1 to 6); 35 (1 to 6); 36 (Suppl, 1 to 6); 37 (Suppl, 1 to 6); 38 (Suppl, 1 to 6); 39 (Suppl, 1 to 6); 40 (1 to 6); 41 (1 to 6); 42 (S1, 1 to 6); 43 (1 to 6); 44 (S1, 1 to 6); 45 (S1, 1 to 6); 46 (S1, 1 to 6); 47 (S1, 1 to 6); 48 (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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14 to 17
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CLOCKSS Archive
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Preserved
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2026-04-13
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1 to 49
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Portico
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Preserved
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2026-04-23
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Preserved : 1978: 1(1-4), 1979: 2(1-4), 1980: 3(1), 1981: 4(1), 1982: 5(1, S1, 2, S2, 3-4), 1983: 6(1, S1, 2, S2, 3-4), 1984: 7(1, S1, 2-4), 1985: 8(1, S1, 2, S2, 3-4), 1986: 9(1, S1, 2, S2, 3-4), 1987: 10(1, S1, 2, S2, 3-4), 1988: 11(1, S1, 2, S2, 3-4), 1989: 12(1, S1, 2, S2, 3-4), 1990: 13(1-6), 1991: 14(1-6), 1992: 15(1-6), 1993: 16(1-6), 1994: 17(1-6), 1995: 18(1, S1, 2-6), 1996: 19(1, S1, 2-6), 1997: 20(1, S1, 2-6), 1998: 21(1, S1, 2, S2, 3, S3, 4-8), 1999: 22(1, S1, 2-8), 2000: 23(1, S1, 2-8), 2001: 24(1, S1, 2, S2, 3-8), 2002/2003: 25(1, S1, 2-8), 2003: 26(1, S1, 2-3, S2, 4-8), 2004: 27(1, S1, 2-6), 2005: 28(1, S1, 2-6), 2006: 29(1, S1, 2-6), 2007: 30(1, S1, 2-6), 2008: 31(1, S1, 2, S2, 3, S3, 4-6), 2009: 32(1, S1, 2-6), 2010: 33(1, S1, 2, S2, 3, S3, 4-6), 2011: 34(1, S1, 2, S2, 3, S3, 4-6), 2012: 35(1, S1, 2-6), 2013: 36(1, S1, 2, S2, 3-6), 2014: 37(1, S1, 2-6), 2015: 38(1, S1, 2-6), 2016: 39(1, S1, 2-6), 2017: 40(1-6), 2018: 41(1, S1, 2-6), 2019: 42(1, S1, 2-6), 2020: 43(1-6), 2021: 44(1, S1, 2-6), 2022: 45(1, S1, 2-6), 2023: 46(1, S1, 2-6), 2024: 47(1, S1, 2-6), 2025: 48(1-6), 2026: 49(1-2)
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Technische Informationsbibliothek
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Preserved
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2026-01-13
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vol.20:1-6,sup.S1;vol.21:1-8,sup.S1,sup.S2,sup.S3;vol.22:1-8,sup.S1;vol.23:1-8,sup.S1;vol.24:1-8,sup.S1,sup.S2;vol.25:1-8,sup.S1;vol.26:1-1,4-8,2-3,sup.S1,sup.S2;vol.27:1-6,sup.S1;vol.28:1-6,sup.S1;vol.29:1-1,4-6,2-3,sup.S1;vol.30:1-6,sup.S1;vol.31:1-6,sup.S1,sup.S2,sup.S3;vol.32:1-6,sup.S1;vol.33:1-6,sup.S1,sup.S2,sup.S3;vol.34:1-6,sup.S1,sup.S2,sup.S3;vol.35:1-6,sup.S1;vol.36:1-6,sup.S1,sup.S2;vol.37:1-6,sup.S1;vol.38:1-6,sup.S1;vol.39:1-6,sup.S1;vol.40:1-6;vol.41:1-6,sup.S1;vol.42:1-6,sup.S1;vol.43:1-6
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Portico
|
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Preserved
|
2026-04-23
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|
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Preserved : 1978: 1(2-4), 1979: 2(2-4), 1980: 3(1)
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|
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LOCKSS Archive
|
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Preserved
|
2026-04-13
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1 to 41
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|
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Portico
|
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Preserved
|
2026-04-23
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Preserved : 1982: 5(3), 1983: 6(2-3), 1984: 7(1-4), 1985: 8(1-4), 1986: 9(1-2, S 2, 3), 1987: 10(1-3), 1988: 11(1-3), 1989: 12(1-2, S 2, 3), 1990: 13(1-6), 1991: 14(1-6), 1992: 15(1-6), 1993: 16(1-6), 1994: 17(1-6), 1995: 18(1-6), 1996: 19(1, S 1, 2-6), 1997: 20(1-6), 1998: 21(1-7), 1999: 22(1-7), 2000: 23(1, S 1, 2-7), 2001: 24(1-5), 2002: 25(1-5, 7), 2003: 26(1, 4-5, 7), 2004/2016: 27(1, S 1, 2-5), 2005: 28(1-6), 2006: 29(1, S 1, 4-6), 2007: 30(1, S 1, 2-6), 2008: 31(1, S 1, 2, S 2, 3-6), 2009: 32(1-6), 2010: 33(1, S 1, 2-6), 2011: 34(1-3, S 3, 4-6), 2012: 35(1-6), 2013: 36(1-2, S 2, 3-6), 2014: 37(1, S 1, 2-6), 2015: 38(1, S 1, 2-6), 2016: 39(1, S 1, 2-6), 2017: 40(1-6), 2018: 41(1, S 1, 2-6)
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CLOCKSS Archive
|
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Preserved
|
2026-04-13
|
|
|
20 to 41
|
|
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Scholars Portal
|
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Preserved
|
2026-03-19
|
|
|
Preserved : 33 (3Online); 36 (5)
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|
|
Library of Congress
|
|
Preserved
|
2025-04-07
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41 (S1, 1 to 6)
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|
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National Digital Preservation Program, China
|
|
Preserved
|
2025-10-23
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|
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Preserved : 2 (Suppl 1, 1 to 6); 3 (1 to 6); 4 (1 to 6); 21 (Suppl 3, 1 to 8); 22 (Suppl 1, 1 to 8); 23 (Suppl 1, 1 to 8); 24 (Suppl 2, 1 to 8); 25 (Suppl 1, 1 to 8); 26 (Suppl 2, 1, 2, 4 to 8); 27 (1 to 6); 28 (1 to 6); 29 (1, 2, 4 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); 41 (Suppl 1, 1 to 6)
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National Digital Preservation Program, China
|
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Preserved
|
2025-12-04
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Preserved : 2 (Suppl 1, 1 to 6); 3 (1 to 6); 4 (1 to 6); 21 (Suppl 3, 1 to 8); 22 (Suppl 1, 1 to 8); 23 (Suppl 1, 1 to 8); 24 (Suppl 2, 1 to 8); 25 (Suppl 1, 1 to 8); 26 (Suppl 2, 1, 2, 4 to 8); 27 (1 to 6); 28 (1 to 6); 29 (1, 2, 4 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); 41 (Suppl 1, 1 to 6)
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National Library of the Netherlands
|
|
Preserved
|
2024-12-15
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|
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Preserved : 20 (1-6); 21 (1-8); 22 (1-8); 23 (supplement-1, 1-8); 24 (Supplement?, 1-8); 25 (Supplement?, 1-8); 26 (Supplement?, 1, 2, 4-8); 27 (0-6); 28 (1-6); 29 (1, 2-3, 4-6); 30 (1, 3-6); 31 (supplement-3, 1-6); 32 (supplement-1, 1-6); 33 (supplement-3, 1-6); 34 (supplement-1, 1-6); 35 (supplement-1, 1-6); 36 (supplement-1, 1-6); 37 (supplement-1, 1-6); 38 (supplement-1, 1-6); 39 (supplement-1, 1-6); 40 (1-6); 41 (1-6)
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