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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 3 (1); 4 (, 1); 5 (, 1); 6 (, 1); 7 (, 1); 8 (, 1); 9 (, 1); 10 (, 1-6); 11 (, 1); 12 (, 1); 13 (, 1 to 6); 14 (, 1 to 6); 15 (, 1 to 5); 16 (, 1 to 6); 17 (, 1 to 4); 18 (, 1 to 3); 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 (, 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 3); 70 (, 1 to 3); 71 (, 1 to 3); 72 (, 1 to 3); 73 (, 1 to 3); 74 (, 1 to 3); 75 (, 1 to 3); 76 (, 1 to 3); 77 (, 1 to 3); 78 (, 1 to 3); 79 (, 1 to 3); 80 (, 1 to 3); 81 (, 1 to 5); 82 (, 1 to 5); 83 (, 1 to 5); 84 (, 1 to 5); 85 (, 1 to 5); 86 (, 1 to 5); 87 (, 1 to 5); 88 (, 1 to 5); 89 (, 1 to 5); 90 (, 1 to 5); 91 (, 1, 2, 3-4, 5); 92 (, 1 to 5); 93 (, 1 to 6); 94 (, 1 to 6); 95 (, 1 to 6); 96 (, 1 to 6); 97 (, 1 to 6); 98 (, 1 to 6); 99 (, 1 to 6); 100 (, 1 to 8); 101 (, 1 to 4, 5-6, 7 to 10); 102 (, 1 to 10); 103 (, 1 to 10); 104 (, 1 to 8); 105 (, 1 to 6, 7/8); 106 (, 1 to 8); 107 (, 1 to 5, 6/7, 8); 108 (, 1 to 8); 109 (, 1/2, 3 to 8); 110 (, 1 to 8); 111 (, 1 to 8); 112 (, 1 to 8); 113 (, 1 to 8); 114 (, 1 to 6); 115 (, 1 to 6); 116 (, 1 to 6); 117 (, 1 to 6); 118 (, 1 to 6); 119 (, 1 to 6); 120 (, 1 to 6); 121 (, 1 to 6); 122 (, 1-2, 3 to 6); 123 (, 1-2, 3 to 6); 124 (, 1 to 4); 125 (, 1 to 4); 126 (, 1 to 6); 127 (, 1 to 4); 128 (, 2 to 4); 129 (, 1, 2, 3-4); 130 (, 1, 2-3, 4); 131 (, 1-2, 3, 4); 132 (, 1 to 4); 133 (, 1 to 4); 134 (, 1); 1950; 1953; 1955; 1956; 1957; 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; 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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Internet Archive
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Preserved
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2025-08-08
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1 to 114
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LOCKSS Archive
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Preserved
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2026-02-09
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1 to 127
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CLOCKSS Archive
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Preserved
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2026-02-09
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1 to 134
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Portico
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Preserved
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2026-02-12
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Preserved : 1950: 3(1), 1950: 4(1), 1953: 5(1), 1953: 6(1), 1955: 7(1), 1956: 8(1), 1957: 9(1), 1959: 10(1-6), 1960: 11(1), 1961: 12(1), 1962/1963: 13(1-6), 1963: 14(1-6), 1964: 15(1-5)
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Portico
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Preserved
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2026-02-12
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Preserved : 1965: 16(1-6), 1965: 17(1-4), 1966: 18(1-3), 1966: 19(1-4), 1966/1967: 20(1-4), 1967: 21(1-4), 1967: 22(1-4), 1967/1968: 23(1-4), 1968: 24(1-4), 1968: 25(1-4), 1969: 26(1-4), 1969: 27(1-4), 1969: 28(1-4), 1970: 29(1-4), 1970: 30(1-4), 1970: 31(1-4), 1970/1971: 32(1-4), 1971: 33(1-4), 1971: 34(1-4), 1971: 35(1-4), 1971/1972: 36(1-4), 1972: 37(1-4), 1972: 38(1-4), 1972: 39(1-4), 1972/1973: 40(1-4), 1973: 41(1-4), 1973: 42(1-4), 1973: 43(1-4), 1973/1974: 44(1-4), 1974: 45(1-4), 1974: 46(1-4), 1974: 47(1-4), 1974: 48(1-4), 1974/1975: 49(1-4), 1975: 50(1-4), 1975: 51(1-4), 1975: 52(1-4), 1975: 53(1-4), 1976: 54(1-4), 1976: 55(1-4), 1976: 56(1-4), 1976: 57(1-4), 1976: 58(1-4), 1976/1977: 59(1-4), 1977: 60(1-4), 1977: 61(1-4), 1977: 62(1-4), 1977: 63(1-4), 1977: 64(1-4), 1977/1978: 65(1-4), 1978: 66(1-4), 1978: 67(1-4), 1978: 68(1-4), 1978: 69(1-3), 1978/1979: 70(1-3), 1979: 71(1-3), 1979: 72(1-3), 1979: 73(1-3), 1979: 74(1-3), 1979: 75(1-3), 1980: 76(1-3), 1980: 77(1-3), 1980: 78(1-3), 1980: 79(1-3), 1980: 80(1-3), 1980/1981: 81(1-5), 1981: 82(1-5), 1981: 83(1-5), 1981/1982: 84(1-5), 1982: 85(1-5), 1982: 86(1-5), 1982: 87(1-5), 1983: 88(1-5), 1984: 89(1-5), 1984: 90(1-5), 1984/1985: 91(1-5), 1985: 92(1-5), 1985/1986: 93(1-6), 1986: 94(1-6), 1987: 95(1-6), 1987/1988: 96(1-6), 1988/1989: 97(1-6), 1989: 98(1-6), 1990: 99(1-6), 1990/1991: 100(1-8), 1991/1992: 101(1-10), 1992/1993: 102(1, S 1, 2-10), 1994/1995: 103(1-10), 1995/1996: 104(1-8), 1996/1997: 105(1-8), 1997: 106(1-8), 1998: 107(1-8), 1999/2000: 108(1-8), 2000/2001: 109(1-8), 2001/2002: 110(1-8), 2002/2003: 111(1-8), 2003/2004: 112(1-8), 2004/2005: 113(1-8), 2005: 114(1-6), 2006: 115(1-6), 2007: 116(1-6), 2008: 117(1-6), 2009: 118(1-6), 2010: 119(1-6), 2011: 120(1-6), 2012: 121(1-4), 2013: 122(1-5), 2014: 123(1-6), 2015: 124(1-4), 2016: 125(1-4), 2017: 126(1-6), 2018: 127(1-4), 2019: 128(1-4), 2020: 129(1-4), 2021: 130(1-4), 2022: 131(1-4), 2023: 132(1-4), 2024: 133(1-4), 2025: 134(1)
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LOCKSS Archive
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In Progress
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2026-02-09
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128
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Portico
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Preserved
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2026-02-12
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Preserved : 1939: 1(1), 1941: 2(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 : 105 (1-6, 7-8); 106 (1-8); 107 (1-5, 6-7, 8); 108 (1-8); 109 (1-2, 3-8); 110 (1-8); 111 (1-8); 112 (1-8); 113 (1-8); 114 (1-6); 115 (1-6); 116 (1, 2, 4-6); 117 (1-6); 118 (1-6); 119 (1-6); 120 (1-6); 121 (1-6); 122 (1-2, 3, 4, 6); 123 (1-2, 3-6); 124 (1-4); 125 (1-4); 126 (1-6); 127 (1-4); 128 (1-4)
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Library of Congress
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Preserved
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2025-04-07
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127 (1 to 4); 128 (1 to 4); 129 (1 to 3-4); 130 (1, 4); 131 (1-2, 3, 4); 132 (1 to 4); 133 (1 to 3)
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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 : 11 (1 to 8); 12 (1 to 6); 13 (1, 2-3, 4); 15 (6, 7); 16 (1 to 8); 17 (1 to 6, 8); 18 (1 to 8); 19 (1, 3 to 8); 111 (1 to 8); 112 (1 to 8); 113 (1 to 8); 114 (1 to 6); 115 (1 to 6); 116 (1 to 6); 117 (1 to 6); 118 (1 to 6); 119 (1 to 6); 121 (1 to 6); 122 (1, 3 to 6); 123 (1, 3 to 6); 124 (1 to 4); 125 (1 to 4); 126 (1 to 6); 127 (1 to 4); 128 (1 to 4); 129 (1, 2, 3-4); 131 (1-2, 3, 4); 132 (1 to 4); 133 (1 to 4)
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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 : 11 (1 to 8); 12 (1 to 6); 13 (1, 2-3, 4); 15 (6, 7); 16 (1 to 8); 17 (1 to 6, 8); 18 (1 to 8); 19 (1, 3 to 8); 111 (1 to 8); 112 (1 to 8); 113 (1 to 8); 114 (1 to 6); 115 (1 to 6); 116 (1 to 6); 117 (1 to 6); 118 (1 to 6); 119 (1 to 6); 121 (1 to 6); 122 (1, 3 to 6); 123 (1, 3 to 6); 124 (1 to 4); 125 (1 to 4); 126 (1 to 6); 127 (1 to 4); 128 (1 to 4); 129 (1, 2, 3-4); 131 (1-2, 3, 4); 132 (1 to 4); 133 (1 to 4)
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