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Scholars Portal
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Preserved
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2026-03-19
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Preserved : 1; 2 (2 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 (1 to 4); 41 (1 to 4); 42 (1 to 4); 43 (1 to 4); 44 (1 to 4); 45 (1 to 4); 46 (1 to 4); 47 (1 to 4); 48 (s1, 1 to 4); 49 (S1, 1 to 4, 5‐6); 50 (1 to 6); 51 (5); 52 (S6); 53 (1 to 6); 54 (1 to 6); 55 (1 to 6); 56 (1 to 6); 57 (1 to 6); 58 (1 to 6); 59 (1 to 6); 60 (s1, 1 to 6); 61 (1 to 6); 62 (1 to 6); 63 (1 to 6); 64 (1, 3 to 6); 65 (1 to 7); 66 (1 to 7); 67 (1 to 7); 68 (1 to 12); 69 (1 to 12); 70 (1 to 12); 71 (1 to 12); 72 (1 to 12); 73 (1 to 12); 74 (1 to 12); 75 (1 to 6, 8 to 12); 76 (1 to 12); 77 (1 to 12); 78 (1 to 12); 79 (1 to 12); 80 (1 to 3)
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Internet Archive
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Preserved
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2025-08-08
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60
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Portico
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Preserved
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2026-04-23
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Preserved : 1933: 1(1)
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Portico
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Preserved
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2026-04-23
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Preserved : 1947/1948: 2(2-4), 1948/1949: 3(1-4), 1950/1951: 4(1-4), 1951/1952: 5(1-4), 1952/1953: 6(1-4), 1953/1954: 7(1-4), 1954/1955: 8(1-4), 1955/1956: 9(1-4), 1956/1957: 10(1-4), 1957/1958: 11(1-4), 1958: 12(1-4), 1959: 13(1-4), 1960: 14(1-4), 1961: 15(1-4), 1962/1963: 16(1-4), 1963: 17(1-4), 1964: 18(1-4), 1965: 19(1-4), 1966: 20(1-4), 1967: 21(1-4), 1968: 22(1-4), 1969: 23(1-4), 1970: 24(1-4), 1971: 25(1-4), 1972: 26(1-4), 1973: 27(1-4), 1974: 28(1-4), 1975: 29(1-4), 1976: 30(1-4), 1977: 31(1-4), 1978: 32(1-4), 1979: 33(1-4), 1980: 34(1-4), 1981: 35(1-4), 1982: 36(1-4), 1983: 37(1-4), 1984: 38(1-4), 1985: 39(1-4), 1986: 40(1-4), 1987: 41(1-4), 1988: 42(1-4), 1989: 43(1-4), 1990: 44(1-4), 1991: 45(1-4), 1992: 46(1-4), 1993: 47(1-4), 1994: 48(1-4), 1995: 49(1, S1, 2-6), 1996: 50(1-6), 1997: 51(1-6), 1998: 52(1, S 1, 2-5, S 6), 1999: 53(1-5), 2000: 54(1-5), 2001: 55(1-5), 2002: 56(1-5), 2003: 57(1-5), 2004: 58(1-5), 2005: 59(1-5), 2006: 60(1-5), 2007: 61(1-5), 2008: 62(1-5), 2009: 63(1-5), 2010: 64(1-5), 2011: 65(1-7), 2012: 66(1-7), 2013: 67(1-7), 2014: 68(1-12), 2015: 69(1-12), 2016: 70(1-12), 2017: 71(1-12), 2018: 72(1-12), 2019: 73(1-12), 2020: 74(1-12), 2021: 75(1-12), 2022: 76(1-12), 2023: 77(1-12), 2024: 78(1-12), 2025: 79(1-12), 2026: 80(1-2)
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CLOCKSS Archive
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Preserved
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2026-04-13
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20, 45 to 80
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National Digital Preservation Program, China
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Preserved
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2025-10-23
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Preserved : 6 (, 1 to 6); 7 (1 to 9, 11, 12); 51 (1 to 6); 52 (S1, 1 to 6); 53 (1 to 6); 54 (1 to 6); 55 (1 to 6); 56 (1 to 6); 57 (1 to 6); 58 (1 to 6); 59 (1 to 6); 61 (1 to 6); 62 (1 to 6); 63 (1 to 6); 64 (1 to 6); 65 (1 to 7); 66 (1 to 7); 67 (1 to 7); 68 (1 to 9, 11, 12); 69 (1 to 9, 11, 12); 71 (1 to 9, 11, 12); 72 (1 to 9, 11, 12); 73 (1 to 9, 11, 12); 74 (1 to 9, 11, 12); 75 (1 to 9, 11, 12); 76 (1 to 9, 11, 12); 77 (1 to 9, 11, 12); 78 (1 to 9, 11, 12); 79 (1 to 9)
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National Digital Preservation Program, China
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Preserved
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2025-12-04
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Preserved : 6 (, 1 to 6); 7 (1 to 9, 11, 12); 51 (1 to 6); 52 (S1, 1 to 6); 53 (1 to 6); 54 (1 to 6); 55 (1 to 6); 56 (1 to 6); 57 (1 to 6); 58 (1 to 6); 59 (1 to 6); 61 (1 to 6); 62 (1 to 6); 63 (1 to 6); 64 (1 to 6); 65 (1 to 7); 66 (1 to 7); 67 (1 to 7); 68 (1 to 9, 11, 12); 69 (1 to 9, 11, 12); 71 (1 to 9, 11, 12); 72 (1 to 9, 11, 12); 73 (1 to 9, 11, 12); 74 (1 to 9, 11, 12); 75 (1 to 9, 11, 12); 76 (1 to 9, 11, 12); 77 (1 to 9, 11, 12); 78 (1 to 9, 11, 12); 79 (1 to 9)
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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 : 60 (s1, 1-6); 61 (1-6)
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