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Scholars Portal
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Preserved
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2025-09-02
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Preserved : I (1 to 4); II (, 5 to 8); III (, 9 to 12); IV (, 13 to 16); V (, 17 to 20); VI (, 21 to 24); VII (, 25 to 28); VIII (, 29 to 32); IX (, 33 to 36); X (, 37 to 40); XI (, 41 to 44); XII (, 45 to 48); XIII (, 49 to 52); XIV (, 53 to 56); XV (, 57 to 60); XVI (, 61 to 64); 17 (, 2 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); 38 (, 1 to 4); 39 (, 1, 3, 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); 49 (, 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, 2, 4); 67 (, 1 to 3); 68 (, 1 to 3); 69 (, 1 to 3); 70 (, 1, 4); 71 (, 3, 4); 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; 1998; 1999; 2000; 2001; 2002; 2003; 2004; 2005; 2006; 2007; 2008; 2009; 2010; 2011; 2012; 2013; 2014; 2015; 2016; 2017; 2018; 2019; 2020
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Internet Archive
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Preserved
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2025-08-08
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1 to 63
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Portico
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Preserved
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2026-02-12
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Preserved : 1950/1951: I(1-4), 1951/1952: II(5-8), 1952/1953: III(9-12), 1953: IV(13-16), 1954/1955: V(17-20), 1955/1956: VI(21-24), 1956/1957: VII(25-28), 1957/1958: VIII(29-32), 1958/1959: IX(33-36), 1959/1960: X(37-40), 1960/1961: XI(41-44), 1961/1962: XII(45-48), 1962/1963: XIII(49-52), 1963/1964: XIV(53-56), 1964/1965: XV(57-60), 1965/1966: XVI(61-64), 1966/1967: 17(2-4), 1967/1968: 18(1-4), 1968/1969: 19(1-4), 1969: 20(1-4), 1970: 21(1-4), 1971: 22(1-4), 1972: 23(1-4), 1973: 24(1-4), 1974: 25(1-4), 1975: 26(1-4), 1976: 27(1-4), 1977: 28(1-4), 1978: 29(1-4), 1979: 30(1-4), 1980: 31(1-4), 1981: 32(1-4), 1982: 33(1-4), 1983: 34(1-4), 1984: 35(1-4), 1985: 36(1-4), 1986: 37(1-4), 1987: 38(1-4), 1988: 39(1, 3-4), 1989: 40(1-4), 1990: 41(1-4), 1991: 42(1-2, 4), 1992: 43(1-4), 1993: 44(1-4), 1994: 45(1-4), 1995: 46(1-4)
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Portico
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Preserved
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2026-02-12
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Preserved : 1999: 50(1-4), 2000: 51(1-3), 2001: 52(1-4), 2002: 53(1-4), 2003: 54(1-4), 2004: 55(1-4), 2005: 56(1-4), 2006: 57(1-4), 2007: 58(1-4), 2008: 59(1-4), 2009: 60(1-4), 2010: 61(1-4), 2011: 62(1-4), 2012: 63(1-4), 2013: 64(1-4), 2014: 65(1-4), 2015: 66(1-4), 2016: 67(1-4), 2017: 68(1-4), 2018: 69(1-4), 2019: 70(1-4), 2020: 71(1-4)
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LOCKSS Archive
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Preserved
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2026-02-09
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56 to 69
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CLOCKSS Archive
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Preserved
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2026-02-09
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59 to 66
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CLOCKSS Archive
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In Progress
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2026-02-09
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67 to 70
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Portico
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Preserved
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2026-02-12
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Preserved : 1950/1951: 1(1-4), 1951/1952: 2(5-8), 1952/1953: 3(9-12), 1953: 4(13-16), 1954/1955: 5(17-20), 1955/1956: 6(21-24), 1956/1957: 7(25-28), 1957/1958: 8(29-32), 1958/1959: 9(33-36), 1959/1960: 10(37-40), 1960/1961: 11(41-44), 1961/1962: 12(45-48), 1962/1963: 13(49-52), 1963/1964: 14(53-56), 1964/1965: 15(57-60), 1965/1966: 16(61-64), 1966/1967: 17(2-4), 1967/1968: 18(1-4), 1968/1969: 19(1-4), 1969: 20(1-4), 1970: 21(1-4), 1971: 22(1-4), 1972: 23(1-4), 1973: 24(1-4), 1974: 25(1-4), 1975: 26(1-4), 1976: 27(1-4), 1977: 28(1-4), 1978: 29(1-4), 1979: 30(1-4), 1980: 31(1-4), 1981: 32(1-4), 1982: 33(1-4), 1983: 34(1-4), 1984: 35(1-4), 1985: 36(1-4), 1986: 37(1-4), 1987: 38(1-4), 1988: 39(1-4), 1989: 40(1-4), 1990: 41(1-4), 1991: 42(1-4), 1992: 43(1-4), 1993: 44(1-4), 1994: 45(1-4), 1995: 46(1-4), 1996: 47(1-4), 1997: 48(1-4), 1998: 49(1-4), 1999: 50(1-4), 2000: 51(1-4), 2001: 52(1-4), 2002: 53(1-4), 2003: 54(1-4), 2004: 55(1-4), 2005: 56(1-4), 2006: 57(1-4), 2007: 58(1-4), 2008: 59(1-4), 2009: 60(1-4), 2010: 61(1-4), 2011: 62(1-4), 2012: 63(1-4), 2013: 64(1-4), 2014: 65(1-4), 2015: 66(1-4), 2016: 67(1-4), 2017: 68(1-4), 2018: 69(1-4), 2019: 70(1-4), 2020: 71(1-4), 2021: 72(1-4), 2022: 73(1-4), 2023: 74(1-4), 2024: 75(1-4), 2025: 76(1-3)
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British Library
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Preserved
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2019-09-18
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Preserved : 65 (1 to 2; 4), 66 (2; 4), 67 (1 to 3), 68 (1), 69 (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 : ; 6 (1 to 4); 7 (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 (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 : ; 6 (1 to 4); 7 (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 (1 to 4)
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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 : I (1-4); II (5-8); III (9-12); IV (13-16); V (17-20); VI (21-24); VII (25-28); VIII (29-32); IX (33-36); X (37-40); XI (41-44); XII (45-48); XIII (49-52); XIV (53-56); XV (57-60); XVI (61-64); 17 (2-4); 18 (1-4); 19 (1, 2, 4); 20 (1-4); 21 (1-4); 22 (1-4); 23 (1-4); 24 (2-4); 25 (1-4); 26 (1-4); 27 (2-4); 28 (1-4); 29 (1-4); 30 (1-4); 31 (1-4); 32 (1-4); 33 (1-4); 34 (1-4); 35 (1-4); 36 (1-4); 37 (1); 38 (2-4); 39 (1-4); 40 (1-4); 41 (1-3); 42 (1-4); 43 (1-4); 44 (1-4); 45 (1-4); 46 (1-4)
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