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Portico
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Preserved
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2026-02-12
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Preserved : 1950: 2(1-4)
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Portico
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Preserved
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2026-02-12
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Preserved : 1953: 5(1-4), 1954: 6(1-4), 1955: 7(1-4), 1956: 8(1-4)
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Portico
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Preserved
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2026-02-12
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Preserved : 1958: 10(1-4), 1959: 11(1-4)
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Portico
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Preserved
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2026-02-12
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Preserved : 1961: 13(1-3), 1962: 14(1-4), 1963: 15(2), 1964: 16(1-4), 1965: 17(1-4), 1966: 18(1-4), 1967: 19(1-4), 1968: 20(1-4), 1969: 21(1-4), 1970: 22(1-4), 1971: 23(1-4), 1972: 24(1-4), 1973: 25(1-4), 1974: 26(1-4), 1975: 27(1-3), 1976: 28(2-4), 1977: 29(1-4), 1978: 30(1-4), 1979: 31(1-4), 1980: 32(1-4), 1981: 33(1-4), 1982: 34(2-4), 1983: 35(1-4), 1984: 36(1-4), 1985: 37(1-4), 1986: 38(1-4), 1987: 39(1-4), 1988: 40(1-4), 1989: 41(1-4), 1990: 42(1-4), 1991: 43(1-4)
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Portico
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Preserved
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2026-02-12
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Preserved : 1993: 45(1-4), 1994: 46(1-4), 1995: 47(1-4), 1996: 48(1-4), 1997: 49(1, S 1, 2-4), 1998: 50(1-4), 1999: 51(1, S 1, 2-4), 1999/2000: 52(1-4), 2001: 53(1-4), 2002: 54(1-4), 2003: 55(1-4), 2004: 56(1-4), 2005: 57(1-4), 2006: 58(1-4), 2007: 59(1-4), 2008: 60(1-4), 2009: 61(1, S 1, 2-4), 2010: 62(1-4)
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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 : 5 (1 to 4); 6 (1 to 4); 7 (1 to 4); 49 (1 to 4); 51 (1 to 4); 52 (1 to 4); 53 (1 to 4); 54 (1 to 4); 55 (1 to 4); 56 (1 to 4); 57 (1 to 4); 58 (1 to 4); 59 (1 to 4); 61 (1 to 4); 62 (1 to 4); 63 (1 to 4); 64 (1 to 4); 65 (1 to 4); 66 (1 to 4); 67 (1 to 4); 68 (1 to 4); 69 (1 to 4); 71 (Suppl 1, 1 to 4); 72 (1 to 4); 73 (1 to 4); 74 (Suppl 3, 1 to 4); 75 (Suppl 1, 1 to 4); 76 (1 to 6)
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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 : 5 (1 to 4); 6 (1 to 4); 7 (1 to 4); 49 (1 to 4); 51 (1 to 4); 52 (1 to 4); 53 (1 to 4); 54 (1 to 4); 55 (1 to 4); 56 (1 to 4); 57 (1 to 4); 58 (1 to 4); 59 (1 to 4); 61 (1 to 4); 62 (1 to 4); 63 (1 to 4); 64 (1 to 4); 65 (1 to 4); 66 (1 to 4); 67 (1 to 4); 68 (1 to 4); 69 (1 to 4); 71 (Suppl 1, 1 to 4); 72 (1 to 4); 73 (1 to 4); 74 (Suppl 3, 1 to 4); 75 (Suppl 1, 1 to 4); 76 (1 to 6)
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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 : 50 (2); 51 (4); 58 (2-4); 59 (1-4); 60 (1-4); 61 (supplement-1, 1-4); 62 (1-4); 63 (supplement-1, 1-4); 64 (1-4); 65 (supplement-1, 1-4); 66 (supplement-1, 1-4); 67 (supplement-1, 1-4); 68 (1-4); 69 (1-4); 70 (1-4); 71 (supplement-1, 1-4)
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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 63 (1 to 4); 64 (, 1 to 4); 65 (, 1 to 4); 66 (, 1 to 4); 67 (, 1 to 4); 68 (, 1 to 4); 69 (, 1 to 4); 70 (, 1 to 4); 71 (, 1 to 4); 72 (, 1 to 4); 73 (, 1 to 4); 74 (, 1 to 4); 75 (, 1 to 4); 76 (, 1 to 6); 77 (, 1 to 7); 2011; 2012; 2013; 2014; 2015; 2016; 2017; 2018; 2019; 2020; 2021; 2022; 2023; 2024; 2025
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CLOCKSS Archive
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Preserved
|
2026-02-09
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2, 5 to 8, 10, 11, 13 to 43, 45 to 78
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Portico
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Preserved
|
2026-02-12
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Preserved : 2011: 63(1, S 1, 2-4), 2012: 64(1-4), 2013: 65(1-4), 2014: 66(1-4), 2015: 67(S 1, 2-4), 2016: 68(1-4), 2017: 69(1-4), 2018: 70(1-4), 2019: 71(1, S 1, 2, S 2, 3, S 3, 4), 2019/2020: 72(1-4), 2021: 73(1-4), 2022: 74(1, S 1, 2, S 2, 3, S 3, 4), 2023: 75(1, S 1, 2-4), 2024: 76(1-5), 2025: 77(2-12), 2026: 78(1)
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LOCKSS Archive
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In Progress
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2026-02-09
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64, 71
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LOCKSS Archive
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Preserved
|
2026-02-09
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65 to 70
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