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Portico
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Preserved
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2026-02-12
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Preserved : 1945: 1(1-4), 1946: 2(1-4), 1947: 3(1, S 1, 2, S 2, 3, S 3, 4), 1948: 4(1-4), 1949: 5(1-4), 1950: 6(1-4), 1951: 7(1-4), 1952: 8(1-4), 1953: 9(1-4), 1954: 10(1, S 1, 2-4), 1955: 11(1, S 1, 2-4), 1956: 12(1-4), 1957: 13(1-4), 1957/1958: 14(1-4), 1958/1959: 15(1-4), 1959/1960: 16(1-4), 1960/1961: 17(1-4), 1961: 18(1-4), 1962: 19(1, S 1, 2-4), 1963/1964: 20(1, S 1, 2, S 2, 3, S 3, 4), 1964: 21(1, S 1, 2-4), 1965: 22(1-4), 1965: 23(1-4), 1966: 24(1-4), 1967: 25(1, S 1, 2, S 2, 3, S 3, 4, S 4, S 5), 1967/1968: 26(1, S 1, 2, S 2, 3-6), 1969: 27(1-3, S 2, S 3, 4-6), 1969/1970: 28(1-6), 1971: 29(1-3, s2-6), 1971/1972: 30(1-2, s1, 3-6), 1972: 31(1-2, s1-7), 1973: 32(1-2, s1-4, s3, 5-6), 1973: 33(1-6), 1974: 34(1-5), 1974: 35(1-5), 1975: 36(1-5), 1975: 37(1-5), 1976: 38(1-5), 1976: 39(1-5), 1977: 40(1-5), 1977: 41(1-5), 1978: 42(1-5), 1978: 43(1-5), 1979: 44(1-5), 1979: 45(1-5), 1980: 46(1-5), 1980: 47(1-5), 1981: 48(1-5), 1981: 49(1-5), 1982: 50(1-5), 1982: 51(1-5), 1983: 52(1, S 1, 2-5), 1983: 53(1, S 1, 2, S 2, 3-5), 1984: 54(1-5), 1984: 55(1, S 1, 2, S 2, 3, S 3, 4-5), 1985: 56(1, S 1, 2-5), 1985: 57(1, S 1, 2-5), 1986: 58(1, S 1, 2, S 2, 3-5), 1986: 59(1-5, S 6, s7-s9)
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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 60 (1 to 5); 61 (, 1 to 5); 62 (, 1 to 5); 63 (, 1 to 5); 64 (, 1 to 5); 65 (, 1 to 5); 66 (, 1 to 5); 67 (, 1 to 5); 68 (, 1 to 6); 69 (, 1 to 3, 5, 6); 70 (, 1 to 6); 71 (, 1 to 6); 72 (, 1 to 3, 4-5, 6); 73 (, 1 to 6); 74 (, 1 to 3, 4‐5, 6); 75 (, 1, 2, 3‐4, 5, 6); 76 (, 1 to 6); 77 (, 1 to 6); 78 (, 1 to 6); 79 (, 1 to 6); 81 (, 6); 84 (, 1); 86 (, 1 to 6); 87 (, 1 to 6); 88 (, 1 to 6); 89 (, 1 to 6); 90 (, 1 to 6); 91 (, 1 to 6); 92 (, 1 to 6); 93 (, 1 to 6); 94 (, 3, 4); 1987; 1988; 1989; 1990; 1991; 1992; 1993; 1994; 1995; 1996; 1997; 1999; 2000; 2001; 2002; 2003; 2004
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CLOCKSS Archive
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Preserved
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2026-02-09
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31, 52, 55, 57, 63, 68 to 93
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Portico
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Preserved
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2026-02-12
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Preserved : 1987: 60(1-5), 1987: 61(1-5), 1988: 62(1-5), 1988: 63(1-5), 1989: 64(1-5), 1989: 65(1-5), 1990: 66(1-s6), 1990: 67(1-5), 1991: 68(1-6), 1991: 69(1, S 1, 2-6), 1992: 70(1-6, S 6), 1992: 71(1-6), 1993: 72(1-6), 1993: 73(1-3, S 3, 4-6), 1994: 74(1-6), 1994: 75(1-6), 1995: 76(1-6), 1995: 77(1-6), 1996: 78(1-6), 1996: 79(1-6), 1997: 80(1-6), 1997: 81(1-6), 1998: 82(1), 1998: 83(1), 1999: 84(1), 1999: 85(1), 2000: 86(1), 2000: 87(1), 2001: 88(1), 2001: 89(1, S 1)
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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 : 8 (, 1 to 6); 9 (1 to 6); 81 (, 1 to 5); 82 (1 to 6); 83 (, 1 to 6); 84 (, 1 to 6); 85 (, 1 to 6); 86 (, 1 to 6); 87 (, 1 to 6); 88 (1 to 6); 89 (1 to 6); 91 (1 to 6); 92 (1 to 6); 93 (1 to 6); 94 (2, 5); 95 (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 : 8 (, 1 to 6); 9 (1 to 6); 81 (, 1 to 5); 82 (1 to 6); 83 (, 1 to 6); 84 (, 1 to 6); 85 (, 1 to 6); 86 (, 1 to 6); 87 (, 1 to 6); 88 (1 to 6); 89 (1 to 6); 91 (1 to 6); 92 (1 to 6); 93 (1 to 6); 94 (2, 5); 95 (1)
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