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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 17 (1, 2); 18 (, 1, 2); 19 (, 1, 2); 20 (, 1, 2); 21 (, 1, 2); 22 (, 1, 2); 23 (, 1, 2); 24 (, 1, 2); 25 (, 1, 2); 26 (, 1, 2); 27 (, 1, 2); 28 (, 1, 2); 29 (, 1, 2); 30 (, 1, 2); 31 (, 1 to 3); 32 (, 1 to 3); 33 (, 1 to 3); 34 (, 1 to 3); 35 (, 1 to 3); 36 (, 1 to 3); 37 (, 1 to 3); 38 (, 1 to 3); 39 (, 1 to 3); 40 (, 1 to 3); 41 (, 1 to 3); 42 (, 1 to 3); 43 (, 1 to 3); 44 (, 1 to 3); 45 (, 1 to 3); 46 (, 1 to 3); 47 (, 1 to 3); 48 (, 1 to 3); 49 (, 1, 2); 50 (, 1, 2); 51 (, 1, 2); 52 (, 1 to 4); 53 (, 1 to 4); 54 (, 1 to 4); 55 (, 1 to 4); 56 (, 1, 2); 57 (, 1-2, 3, 4); 58 (, 1-2, 3, 4); 59 (, 1, 2, 3-4); 60 (, 1, 2-3, 4); 61 (, 1 to 4); 62 (, 1 to 4); 63 (, 1 to 4); 64 (, 1 to 3); 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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Portico
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Preserved
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2026-02-12
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Preserved : 1960/1961: 1(1-2), 1961/1962: 2(1-2), 1962/1963: 3(1-2), 1963/1964: 4(1-2), 1964/1965: 5(1-2), 1966: 6(1-2), 1966/1967: 7(1-2), 1967/1968: 8(1-2), 1968/1969: 9(1-2), 1969/1970: 10(1-2), 1970/1971: 11(1-2), 1971/1972: 12(1-2), 1972/1973: 13(1-2), 1973/1974: 14(1-2), 1974/1975: 15(1-2), 1976/1977: 16(1-2), 1977/1978: 17(1-2), 1978/1979: 18(1-2), 1979/1980: 19(1-2), 1980/1981: 20(1-2), 1981/1982: 21(1-2), 1982/1983: 22(1-2), 1983/1984: 23(1-2), 1984/1985: 24(1-2), 1986: 25(1-2), 1987: 26(1-2), 1988: 27(1-2), 1989: 28(1-2), 1990: 29(1-2), 1991: 30(1-2), 1992: 31(1-3), 1993: 32(1-3), 1994: 33(1-3), 1995: 34(1-3), 1996: 35(1-3), 1997: 36(1-3), 1998: 37(1-3), 1999: 38(1-3), 2000: 39(1-3), 2001: 40(1-3), 2002: 41(1-3), 2003: 42(1-3), 2004: 43(1-3), 2005: 44(1-3), 2006: 45(1-3), 2007: 46(1-3), 2008: 47(1-3), 2009: 48(1-3), 2010: 49(1-2), 2011: 50(1-2), 2012: 51(1-2), 2013: 52(1-4), 2014: 53(1-4), 2015: 54(1-4)
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LOCKSS Archive
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Preserved
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2026-02-09
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17 to 63
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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, 17 to 64
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LOCKSS Archive
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In Progress
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2026-02-09
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64
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Portico
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Preserved
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2026-02-12
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Preserved : 1990: 29(1-2), 1991: 30(1-2), 1992: 31(1-3), 1993: 32(1-3), 1994: 33(1-3), 1995: 34(1-3), 1996: 35(1-3), 1997: 36(1-3), 1998: 37(1-3), 1999: 38(1-3), 2000: 39(1-3), 2001: 40(1-3), 2002: 41(1-3), 2003: 42(1-3), 2004: 43(1-3), 2005: 44(1-3), 2006: 45(1-3), 2007: 46(1-3), 2008: 47(1-3), 2009: 48(1-3), 2010: 49(1-2), 2011: 50(1-2), 2012: 51(1-2), 2013: 52(1-4), 2014: 53(1-4), 2015: 54(1-4), 2016: 55(1-4), 2017: 56(1-4), 2018: 57(1-4), 2019: 58(1-4), 2020: 59(1-4), 2021: 60(1-4), 2022: 61(1-4), 2023: 62(1-4), 2024: 63(1-4), 2025: 64(1-4)
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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 : 56 (2, 3-4)
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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 : 56 (2, 3-4); 58 (1-2)
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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 : 4 (1 to 3); 5 (1, 2); 6 (1, 2-3, 4); 36 (1 to 3); 37 (1 to 3); 38 (1 to 3); 39 (1 to 3); 41 (1 to 3); 42 (1 to 3); 43 (1 to 3); 44 (1 to 3); 45 (1 to 3); 46 (1 to 3); 47 (1 to 3); 48 (1 to 3); 49 (1, 2); 51 (1, 2); 52 (1 to 4); 53 (1 to 4); 54 (1 to 4); 55 (1 to 4); 56 (1, 2, 3-4); 57 (1-2, 3, 4); 58 (1-2, 3, 4); 59 (1, 2, 3-4); 61 (1 to 4); 62 (1 to 4); 63 (1 to 4); 64 (1, 2)
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Library of Congress
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Preserved
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2025-04-07
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55 (1); 56 (1 to 3-4); 57 (1-2, 3, 4); 58 (1-2, 3, 4); 59 (1 to 3-4); 60 (1, 2-3, 4); 61 (1 to 4); 62 (1 to 4); 63 (1 to 4)
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