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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 1 (1); 2 (, 1); 3 (, 1); 4 (, 1 to 4); 5 (, 1 to 4); 6 (, 1 to 4); 7 (, 1 to 4); 8 (, 1 to 6); 9 (, 1 to 6); 10 (, 1 to 6); 11 (, 1 to 6); 12 (, 1 to 6); 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 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); 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 (, 1 to 6); 49 (, 1 to 6); 50 (, 1 to 8); 51 (, 1 to 7); 52 (, 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, 4 to 6); 59 (, 1 to 6); 60 (, 1 to 6); 61 (, 1 to 6); 62 (, 1 to 4, 5-6); 63 (, 1 to 6); 64 (, 1 to 6); 65 (, 1 to 6); 66 (, 1 to 6); 67 (, 1 to 6); 68 (, 1 to 4, 5-6); 69 (, 1 to 4, 5-6); 70 (, 1 to 4, 5-6); 71 (, 1 to 4); 1955; 1956; 1957; 1958; 1959; 1960; 1961; 1962; 1963; 1964; 1965; 1966; 1967; 1968; 1969; 1970; 1971; 1972; 1973; 1974; 1975; 1976; 1977; 1978; 1979; 1985; 1986; 1987; 1988; 1989; 1990; 1991; 1992; 1993; 1994; 1995; 1996; 1997; 1998; 1999; 2000; 2001; 2002; 2003; 2004; 2005; 2006; 2007; 2008; 2009; 2010; 2011; 2012; 2013; 2014; 2015; 2016; 2017; 2018; 2019; 2020; 2021; 2022; 2023; 2024; 2025
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Technische Informationsbibliothek
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Preserved
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2026-01-13
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vol.51:1-7;vol.52:1-6;vol.53:1-6;vol.54:1-6;vol.55:1-6;vol.56:1-6
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CLOCKSS Archive
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Preserved
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2026-02-09
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51 to 55
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CLOCKSS Archive
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Preserved
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2026-02-09
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ahead-of-print, 4 to 71
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LOCKSS Archive
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Preserved
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2026-02-09
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7 to 70
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LOCKSS Archive
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In Progress
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2026-02-09
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71
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Portico
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Preserved
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2026-02-12
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Preserved : 1955: 1(1), 1956: 2(1), 1957: 3(1), 1958/1959: 4(1-4), 1959/1960: 5(1-4), 1960/1961: 6(1-4), 1961: 7(1-4), 1962: 8(1-6), 1963: 9(1-6), 1964: 10(1-6), 1965: 11(1-6), 1966: 12(1-6), 1967: 13(1-6), 1968: 14(1-6), 1969: 15(1-6), 1970: 16(1-6), 1971: 17(1-6), 1972: 18(1-6), 1973: 19(1-4), 1974: 20(1-4), 1975: 21(1-4), 1976: 22(1-4), 1977: 23(1-4), 1978: 24(1-4), 1979: 25(1-4), 1980: 26(1-4), 1981: 27(1-4), 1982: 28(1-4), 1983: 29(1-4), 1984: 30(1-4), 1985: 31(1-4), 1986: 32(1-4), 1987: 33(1-4), 1988: 34(1-4), 1989: 35(1-4), 1990: 36(1-4), 1991: 37(1-4), 1992: 38(1-4), 1993: 39(1-4), 1994: 40(1-4), 1995: 41(1-4), 1996: 42(1-4), 1997: 43(1-4), 1998: 44(1-4), 1999: 45(1-4), 2000: 46(1-4), 2001: 47(1-4), 2002: 48(1-6), 2003: 49(1-6), 2004: 50(1-8), 2005: 51(1-6), 2006: 52(1-6), 2007: 53(1-6), 2008: 54(1-6), 2009: 55(1-6), 2010: 56(1-6), 2011: 57(1-6), 2012: 58(1-6), 2013: 59(1-6), 2014: 60(1-6), 2015: 61(1-6), 2016: 62(1-6), 2017: 63(1-6), 2018: 64(1-6), 2019: 65(1-6), 2020: 66(1-6), 2021: 67(1-6), 2022: 68(1-6), 2023: 69(1-6), 2024: 70(1-6), 2025: 71(1-6), 2026: 72(1)
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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 8); 6 (1 to 6); 7 (1 to 4, 5-6); 43 (sup1, 1 to 4); 44 (1 to 4); 45 (1 to 4); 46 (1 to 4); 47 (1 to 4); 48 (1 to 6); 49 (1 to 6); 51 (1 to 7); 52 (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 (sup1, 1 to 6); 62 (1 to 4, 5-6); 63 (1 to 6); 64 (1 to 6); 65 (1 to 6); 66 (1 to 6); 67 (1 to 6); 68 (1 to 4, 5-6); 69 (1 to 4, 5-6); 71 (1)
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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 : 52 (1-6); 53 (1-6)
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