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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 14); 2 (1 to 12); 3 (1 to 12); 4 (1 to 12); 5 (1 to 12); 6 (1 to 12); 7 (1 to 12); 8 (1 to 12); 9 (1 to 12); 10 (1 to 12); 11 (1 to 12); 12 (1 to 12); 13 (1 to 12); 14 (1 to 12); 15 (1 to 12); 16 (1 to 12); 17 (1 to 12); 18 (1 to 12); 19 (1 to 12); 20 (1 to 12); 21 (1 to 12); 22 (1 to 12); 23 (1 to 12); 24 (1 to 12); 25 (1 to 12); 26 (1 to 12); 27 (1 to 12); 28 (1 to 12); 29 (1 to 12); 30 (1 to 12); 31 (1 to 12); 32 (s1, 1 to 12); 33 (1 to 12); 34 (1 to 12); 35 (1 to 12); 36 (1 to 12); 37 (1 to 12); 38 (1 to 12); 39 (1 to 12); 40 (s2, 1 to 12); 41 (1 to 12); 42 (1 to 12); 43 (1 to 9, 11, 12); 44 (s3, 1 to 12); 45 (1 to 12); 46 (1 to 12); 47 (1 to 12); 48 (1 to 12); 49 (1 to 10, 12); 50 (1 to 12); 51 (1 to 12); 52 (1 to 12); 53 (1 to 12); 54 (s1, 1 to 12); 55 (1 to 12); 56 (s1, 1 to 12); 57 (1 to 12); 58 (s1, 1 to 12); 59 (1 to 12); 60 (s5, 1 to 12); 61 (s6, 1 to 12); 62 (s2, 1 to 12); 63 (s2, 1 to 12); 64 (s3, 1 to 12); 65 (s2, 1 to 12); 66 (s2, 1 to 12); 67 (s1, 1 to 12); 68 (s2, 1 to 12); 69 (s1, 1 to 12); 70 (s1, 1 to 9, 11, 12); 71 (S1, 1 to 12); 72 (S1, 1 to 12)
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Internet Archive
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Preserved
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2025-08-08
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1 to 72
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Technische Informationsbibliothek
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Preserved
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2026-01-13
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vol.55:1-12;vol.56:1-12,sup.s1;vol.57:1-12;vol.58:1-12,sup.s1;vol.59:1-12;vol.60:1-12,sup.s10,sup.s5,sup.s7;vol.61:1-12,sup.s5,sup.s6;vol.62:1-12,sup.s1,sup.s2,sup.s3;vol.63:1-12,sup.s1,sup.s2;vol.64:1-12,sup.s1,sup.s2,sup.s3,sup.s4;vol.65:1-12,sup.s1,sup.s2,sup.s3;vol.66:1-12,sup.s1,sup.s2;vol.67:1-12,sup.s1,sup.s2;vol.68:1-12,sup.s1,sup.s2;vol.69:1-12,sup.s1;vol.70:1-12,sup.s1,sup.s2;vol.71:1-12,sup.S1;vol.72:1-12,sup.S1
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Portico
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Preserved
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2026-04-16
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Preserved : 1942/1943: 1(1-14), 1944: 2(1-12), 1945: 3(1-12), 1946: 4(1-12), 1947: 5(1-12), 1948: 6(1-12), 1949: 7(1-12), 1950: 8(1-12), 1951: 9(1-12), 1952: 10(1-12), 1953: 11(1-12), 1954: 12(1-12), 1955: 13(1-12), 1956: 14(1-12), 1957: 15(1-12), 1958: 16(1-12), 1959: 17(1-12), 1960: 18(1-12), 1961: 19(1-12), 1962: 20(1-12), 1963: 21(1-12), 1964: 22(1-12), 1965: 23(1-12), 1966: 24(1-12), 1967: 25(1-12), 1968: 26(1-12), 1969: 27(1-12), 1970: 28(1-12), 1971: 29(1-12), 1972: 30(1-12), 1973: 31(1-12), 1974: 32(1-12), 1975: 33(1-12), 1976: 34(1-12), 1977: 35(1-12), 1978: 36(1-12), 1979: 37(1-12), 1980: 38(1-12), 1981: 39(1-12), 1982: 40(1-12), 1983: 41(1-12), 1984: 42(1-12), 1985: 43(1-9, 11-12), 1986: 44(1-12), 1987: 45(1-12), 1988: 46(1-12), 1989: 47(1-12), 1990: 48(1-12), 1991: 49(1-10, 12), 1992: 50(1-12), 1993: 51(1-12), 1994: 52(1-2, 2_p1, 3-12), 1995: 53(1-12), 1996: 54(1-12), 1997: 55(1-12), 1998: 56(1-12), 1999: 57(1-12), 2000: 58(1-12), 2001: 59(1-12), 2002: 60(1-12), 2003: 61(1-12), 2004: 62(1-12), 2005: 63(1-12), 2006: 64(1-12), 2007: 65(1-12), 2008: 66(1-12), 2009: 67(1-12), 2010: 68(1-12), 2011: 69(1-12), 2012: 70(1-12), 2013: 71(1, S1, 2-12), 2014: 72(1, S1, 2-12)
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CLOCKSS Archive
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Preserved
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2026-04-13
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49 to 72
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LOCKSS Archive
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Preserved
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2026-04-13
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66 to 82
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CLOCKSS Archive
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In Progress
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2026-04-13
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66, 75, 77 to 83
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CLOCKSS Archive
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Preserved
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2026-04-13
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67 to 74, 76, 84
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LOCKSS Archive
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In Progress
|
2026-04-13
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83, 84
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Portico
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Preserved
|
2026-04-16
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Preserved : 1943: 1(1-14), 1944: 2(1-12), 1945: 3(1-12), 1946: 4(1-12), 1947: 5(1-12), 1948: 6(1-12), 1949: 7(1-12), 1950: 8(1-12), 1951: 9(1-12), 1952: 10(1-12), 1953: 11(1-12), 1954: 12(1-12), 1955: 13(1-12), 1956: 14(1-12), 1957: 15(1-12), 1958: 16(1-12), 1959: 17(1-12), 1960: 18(1-12), 1961: 19(1-12), 1962: 20(1-12), 1963: 21(1-12), 1964: 22(1-12), 1965: 23(1-12), 1966: 24(1-12), 1967: 25(1-12), 1968: 26(1-12), 1969: 27(1-12), 1970: 28(1-12), 1971: 29(1-12), 1972: 30(1-12), 1973: 31(1-12), 1974: 32(1-12), 1975: 33(1-12), 1976: 34(1-12), 1977: 35(1-12), 1978: 36(1-12), 1979: 37(1-12), 1980: 38(1-12), 1981: 39(1-12), 1982: 40(1-12), 1983: 41(1-12), 1984: 42(1-12), 1985: 43(1-9, 11-12), 1986: 44(1-12), 1987: 45(1-12), 1988: 46(1-12), 1989: 47(1-12), 1990: 48(1-12), 1991: 49(1-10, 12), 1992: 50(1-12), 1993: 51(1-12), 1994: 52(1-12), 1995: 53(1-12), 1996: 54(1-12), 1997: 55(1-12), 1998: 56(1-12), 1999: 57(1-12), 2000: 58(1-12), 2001: 59(1-12), 2002: 60(1-12), 2003: 61(1-12), 2004: 62(1-12), 2005: 63(1-12), 2006: 64(1-12), 2007: 65(1-12), 2008: 66(1-12), 2009: 67(1-12), 2010: 68(1-12), 2011: 69(1-12), 2012: 70(1-12), 2013: 71(1-12), 2014: 72(1-12), 2015: 73(1-12), 2016: 74(1-12), 2017: 75(1-12), 2018: 76(1-12), 2019: 77(1-12), 2020: 78(1-12), 2021: 79(1-12), 2022: 80(1-12), 2023: 81(1-12), 2024: 82(1-12), 2025: 83(1-12), 2026: 84(1-4)
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National Digital Preservation Program, China
|
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Preserved
|
2025-10-23
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Preserved : 6 (, 1 to 9, 11, 12); 7 (, 1 to 9, 11, 12); 55 (1 to 9, 11, 12); 56 (, 1 to 9, 11, 12); 57 (1 to 9, 11, 12); 58 (, 1 to 9, 11, 12); 59 (1 to 9, 11, 12); 61 (, 1 to 9, 11, 12); 62 (, 1 to 9, 11, 12); 63 (, 1 to 9, 11, 12); 64 (, 1 to 9, 11, 12); 65 (, 1 to 9, 11, 12); 66 (, 1 to 9, 11, 12); 67 (, 1 to 9, 11, 12); 68 (, 1 to 9, 11, 12); 69 (, 1 to 9, 11, 12); 71 (, 1 to 9, 11, 12); 72 (, 1 to 9, 11, 12)
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National Digital Preservation Program, China
|
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Preserved
|
2025-12-04
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Preserved : 6 (, 1 to 9, 11, 12); 7 (, 1 to 9, 11, 12); 55 (1 to 9, 11, 12); 56 (, 1 to 9, 11, 12); 57 (1 to 9, 11, 12); 58 (, 1 to 9, 11, 12); 59 (1 to 9, 11, 12); 61 (, 1 to 9, 11, 12); 62 (, 1 to 9, 11, 12); 63 (, 1 to 9, 11, 12); 64 (, 1 to 9, 11, 12); 65 (, 1 to 9, 11, 12); 66 (, 1 to 9, 11, 12); 67 (, 1 to 9, 11, 12); 68 (, 1 to 9, 11, 12); 69 (, 1 to 9, 11, 12); 71 (, 1 to 9, 11, 12); 72 (, 1 to 9, 11, 12)
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National Digital Preservation Program, China
|
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Preserved
|
2025-10-23
|
|
|
Preserved : 8 (2 to 9, 11, 12); 73 (suppl_1, 1 to 9, 11, 12); 74 (1 to 9, 11, 12); 75 (suppl_1, 1 to 9, 11, 12); 76 (Supplement_1, 1 to 9, 11, 12); 77 (1 to 9, 11, 12); 78 (Supplement_1, 1 to 9, 11, 12); 79 (Supplement_1, 1 to 9, 11, 12)
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|
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National Digital Preservation Program, China
|
|
Preserved
|
2025-12-04
|
|
|
Preserved : 8 (2 to 9, 11, 12); 73 (suppl_1, 1 to 9, 11, 12); 74 (1 to 9, 11, 12); 75 (suppl_1, 1 to 9, 11, 12); 76 (Supplement_1, 1 to 9, 11, 12); 77 (1 to 9, 11, 12); 78 (Supplement_1, 1 to 9, 11, 12); 79 (Supplement_1, 1 to 9, 11, 12)
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British Library
|
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Preserved
|
2019-09-18
|
|
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Preserved : 54 (5; 8 to 9), 56 (3), 57 (1; 4 to 5), 58 (3; 8; 10 to 11; S1), 59 (8), 60 (5; 7; S10), 61 (5 to 6; 9; 12; S6), 62 (1; 4 to 7; 11; S3), 63 (2; 9), 65 (2 to 3), 66 (2 to 3; 10; 12), 67 (5; 12), 68 (10; 12; S2), 69 (1 to 2; 11), 70 (4; 10), 72 (7), 73 (4; 6; 8; 10 to 11; S1; S3), 74 (1 to 2; 5 to 11), 75 (1 to 4; 8; S1), 76 (7), 77 (8)
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