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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 to 12); 2 (, 1 to 12); 3 (, 1 to 12); 4 (, 1 to 12); 5 (, 1 to 12); 6 (, 1 to 13); 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 13); 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 (, 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 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 4); 49 (, 1 to 4); 50 (, 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); 60 (, 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); 73 (, 1 to 4); 74 (, 1 to 4); 75 (, 1 to 4); 76 (, 1 to 4); 77 (, 1 to 4); 78 (, 1 to 4); 79 (, 1 to 15); 80 (, 1 to 15); 81 (, 1 to 15); 82 (, 2 to 15); 83 (, 1 to 15); 84 (, 1 to 15); 85 (, 1 to 15); 86 (, 1 to 15); 87 (, 1 to 15); 88 (, 1 to 15); 89 (, 1 to 15); 90 (, 1 to 15); 91 (, 1, 2, 4 to 15); 92 (, 1 to 3, 6, 9 to 15); 93 (, 1 to 15); 94 (, 1 to 15); 95 (, 1 to 15); 96 (, 1 to 15); 97 (, 1 to 15); 98 (, 1 to 15); 99 (, 1 to 15); 100 (, 1 to 15); 101 (, 1 to 15); 102 (, 1 to 15); 103 (, 1 to 15); 104 (, 1 to 15); 105 (, 1 to 10); 1950; 1951; 1952; 1953; 1954; 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; 1980; 1981; 1982; 1983; 1984; 1985; 1986; 1987; 1988; 1989; 1990; 1991; 1992; 1993; 1994; 1995; 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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Internet Archive
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Preserved
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2025-08-08
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73-75 to 81
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Portico
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Preserved
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2026-02-12
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Preserved : 1950: 1(1-12), 1951: 2(1-12), 1952: 3(1-12), 1953: 4(1-12), 1954: 5(1-12), 1955: 6(1-13), 1956: 7(1-12), 1957: 8(1, S 1, 2-12), 1958: 9(1-12), 1959: 10(1, S 1, 2, S 2, 3-12), 1960: 11(1-12), 1961: 12(1-12), 1962: 13(1, S 1, 2-12), 1963: 14(1-13), 1964: 15(1, S 1, 2-12), 1965: 16(1-12), 1966: 17(1, S 1, 2-12), 1967: 18(1-12, S 13, S 14), 1968: 19(1, S 1, 2-12), 1969: 20(1-12, S 13, S 14), 1970: 21(1-12), 1971: 22(1-12), 1972: 23(1-12), 1973: 24(1-12), 1974: 25(1-12), 1975: 26(1-12), 1976: 27(1-12), 1977: 28(1-12), 1978: 29(1-12), 1979: 30(1-12), 1980: 31(1-12), 1981: 32(1-12), 1982: 33(1-12), 1983: 34(1-12), 1984: 35(1-12), 1985: 36(1-12), 1986: 37(1-12), 1987: 38(1-4), 1987: 39(1-4), 1987: 40(1-4), 1987: 41(1-4), 1988: 42(1-4), 1988: 43(1-4), 1988: 44(1-4), 1988: 45(1-4), 1988/1989: 46(1-4), 1989: 47(1-4), 1989: 48(1-4), 1989: 49(1-4), 1990: 50(1-4), 1990: 51(1-4), 1990: 52(1-4), 1990: 53(1-4), 1991: 54(1-4), 1991: 55(1-4), 1991: 56(1-4), 1991: 57(1-4), 1992: 58(1-4), 1992: 59(1-4), 1992: 60(1-4), 1993: 61(1-4), 1993: 62(1-4), 1993: 63(1-4), 1994: 64(1-4), 1994: 65(1-4), 1994: 66(1-4), 1995: 67(1-4), 1995: 68(1-4), 1995: 69(1-4), 1996: 70(1-4), 1996: 71(1-4), 1996: 72(1-4), 1997: 73(1-4), 1997: 74(1-4), 1997: 75(1-4), 1998: 76(1-4), 1998: 77(1-4), 1998: 78(1-4), 1999: 79(1-15), 2000: 80(1-15), 2001: 81(1-15), 2002: 82(1-15), 2003: 83(1-15), 2004: 84(1-15), 2005: 85(1-15), 2006: 86(1-15), 2007: 87(1-15), 2008: 88(1-15), 2009: 89(1-15), 2010: 90(1-15), 2011: 91(1-15), 2012: 92(1-15), 2013: 93(1-15), 2014: 94(1-15), 2015: 95(1-15), 2016: 96(1-15), 2017: 97(1-15), 2018: 98(1-15), 2019: 99(1-15), 2020: 100(1-15), 2021: 101(1-15), 2022: 102(1-15), 2023: 103(1-15), 2024: 104(1-15), 2025: 105(1-15), 2026: 106(1-4)
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CLOCKSS Archive
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Preserved
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2026-02-09
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54 to 106
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Technische Informationsbibliothek
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Preserved
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2026-01-13
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vol.100:1-15;vol.101:1-3;vol.73:1-4;vol.74:1-4;vol.75:1-4;vol.76:1-4;vol.77:1-4;vol.78:1-4;vol.79:1-15;vol.80:1-15;vol.81:1-15;vol.82:1-15;vol.83:1-15;vol.84:1-15;vol.85:1-15;vol.86:1-15;vol.87:1-15;vol.88:1-15;vol.89:1-15;vol.90:1-15;vol.91:1-15;vol.92:1-15;vol.93:1-15;vol.94:1-15;vol.95:1-15;vol.96:1-15;vol.97:1-15;vol.98:1-15;vol.99:1-15
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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 : 1 (1 to 9, 11 to 15); 7 (1 to 4); 8 (1 to 9, 11 to 15); 9 (1 to 9, 11 to 15); 11 (1 to 9, 11 to 15); 12 (1 to 9, 11 to 15); 13 (1 to 9, 11 to 15); 14 (1 to 9, 11 to 15); 15 (1 to 9, 11 to 13); 71 (1 to 4); 72 (1 to 4); 73 (1 to 4); 74 (1 to 4); 75 (1 to 4); 76 (1 to 4); 77 (1 to 4); 78 (1 to 4); 79 (1 to 9, 11 to 15); 81 (1 to 9, 11 to 15); 82 (1 to 9, 11 to 15); 83 (1 to 9, 11 to 15); 84 (1 to 9, 11 to 15); 85 (1 to 9, 11 to 15); 86 (1 to 9, 11 to 15); 87 (1 to 9, 11 to 15); 88 (1 to 9, 11 to 15); 89 (1 to 9, 11 to 15); 91 (1 to 9, 11 to 15); 92 (1 to 9, 11 to 15); 93 (1 to 9, 11 to 15); 94 (1 to 9, 11 to 15); 95 (1 to 9, 11 to 15); 96 (1 to 9, 11 to 15); 97 (1 to 9, 11 to 15); 98 (1 to 9, 11 to 15); 99 (1 to 9, 11 to 15)
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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 : 1 (1 to 9, 11 to 15); 7 (1 to 4); 8 (1 to 9, 11 to 15); 9 (1 to 9, 11 to 15); 11 (1 to 9, 11 to 15); 12 (1 to 9, 11 to 15); 13 (1 to 9, 11 to 15); 14 (1 to 9, 11 to 15); 15 (1 to 9, 11 to 14); 71 (1 to 4); 72 (1 to 4); 73 (1 to 4); 74 (1 to 4); 75 (1 to 4); 76 (1 to 4); 77 (1 to 4); 78 (1 to 4); 79 (1 to 9, 11 to 15); 81 (1 to 9, 11 to 15); 82 (1 to 9, 11 to 15); 83 (1 to 9, 11 to 15); 84 (1 to 9, 11 to 15); 85 (1 to 9, 11 to 15); 86 (1 to 9, 11 to 15); 87 (1 to 9, 11 to 15); 88 (1 to 9, 11 to 15); 89 (1 to 9, 11 to 15); 91 (1 to 9, 11 to 15); 92 (1 to 9, 11 to 15); 93 (1 to 9, 11 to 15); 94 (1 to 9, 11 to 15); 95 (1 to 9, 11 to 15); 96 (1 to 9, 11 to 15); 97 (1 to 9, 11 to 15); 98 (1 to 9, 11 to 15); 99 (1 to 9, 11 to 15)
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