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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 4); 2 (, 1 to 4); 3 (, 1 to 4); 4 (, 1 to 4); 5 (, 1 to 4); 6 (, 1 to 4); 7 (, 1 to 4); 8 (, 1 to 4); 9 (, 1 to 4); 10 (, 1 to 4); 11 (, 1 to 4); 12 (, 1 to 6); 13 (, 1 to 6); 14 (, 1 to 6); 15 (, 1 to 6); 16 (, 1 to 6); 17 (, 1 to 6); 18 (, 1 to 6); 19 (, 1 to 5, 6-7, 8); 20 (, 1-2, 3 to 8); 21 (, 1 to 8); 22 (, 1 to 8); 23 (, 1 to 8); 24 (, 1 to 8); 25 (, 1 to 8); 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 14); 37 (, 1 to 13); 38 (, 1 to 12); 39 (, 1 to 12); 40 (, 1 to 12); 41 (, 1 to 12); 42 (, 1 to 12); 43 (, 1 to 12); 44 (, 1 to 12); 45 (, 1 to 13); 46 (, 1 to 13); 47 (, 1 to 13); 48 (, 1 to 13); 49 (, 4, 9 to 13); 50 (, 1 to 13); 51 (, 1 to 13); 52 (, 1 to 13); 53 (, 1); 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
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Internet Archive
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Preserved
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2025-08-08
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11 to 38
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CLOCKSS Archive
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Preserved
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2026-02-09
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1 to 56
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Portico
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Preserved
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2026-02-12
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Preserved : 1975: 3(3-4)
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Portico
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Preserved
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2026-02-12
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Preserved : 1976: 4(4)
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Portico
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Preserved
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2026-02-12
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Preserved : 1977: 5(3), 1978: 7(2), 1979: 8(2-3)
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Portico
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Preserved
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2026-02-12
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Preserved : 1982: 12(5-6), 1983: 13(3), 1984: 14(1)
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Portico
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Preserved
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2026-02-12
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Preserved : 1985: 15(1)
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Portico
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Preserved
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2026-02-12
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Preserved : 1986: 16(3), 1987: 17(3-6), 1988: 18(1, 3-5), 1988/1989: 19(1, 6-8), 1989/1990: 20(1, 3, 5-6, 8), 1991: 21(4, 6-8), 1992: 22(1-2, 4, 7-8), 1993: 23(3, 5)
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Portico
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Preserved
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2026-02-12
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Preserved : 1995: 25(1, S 1, 2, 4, 8), 1996: 26(1-2, 12), 1997: 27(1-12), 1998: 28(1-12), 1999: 29(1-12), 2000: 30(1-12), 2001: 31(1-12), 2002: 32(1-12), 2003: 33(1-2, S 2, 3-12), 2004: 34(1-2, S 2, 3-12), 2005: 35(1-12), 2006: 36(1, S 1, 2-12), 2007: 37(1-2, S 2, 3-12), 2008: 38(1-2, S 2, 3, S 3, 4-12), 2009: 39(1-3, S 3, 4-12), 2010: 40(1, S 1, 2-12), 2011: 41(1-12), 2012: 42(1-2, S 2, 3-12), 2013: 43(1-2, S 2, 3-12), 2014: 44(1, S 1, 2-12), 2015: 45(1-2, S 2, Meeting Abstracts, 3-13), 2016: 46(1, S 1, 2-13), 2017: 47(1, S 1, 2, S 2, 3-13), 2018: 48(1, S 1, 2-13), 2019: 49(1, S 1, 2-13), 2020: 50(1, S 1, 2-13), 2021: 51(1, S 1, 2-13), 2022: 52(1, S 1, 2, S 2, 3-13), 2023: 53(1, S 1, 2, S 2, 3-13), 2024: 54(1, S 1, 2, S 2, 3-11), 2025: 55(1, S 1, 2, S 2, 4-5, 7, 9-10, 12-13), 2026: 56(1-2)
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LOCKSS Archive
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In Progress
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2026-02-09
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42
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LOCKSS Archive
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Preserved
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2026-02-09
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43 to 49
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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 53 (2 to 13); 54 (, 1 to 13); 55 (, 1 to 7); 2023; 2024; 2025
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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 : 3 (1 to 9, 11, 12); 4 (Suppl 1, 1 to 9, 11, 12); 5 (Suppl 1, 1 to 9, 11 to 13); 27 (1 to 9, 11, 12); 28 (1 to 9, 11, 12); 29 (1 to 9, 11, 12); 31 (1 to 9, 11, 12); 32 (Suppl 1, 1 to 9, 11, 12); 33 (Suppl 2, 1 to 9, 11, 12); 34 (Suppl 3, 1 to 9, 11, 12); 35 (Suppl 2, 1 to 9, 11, 12); 36 (Suppl 2, 1 to 9, 11, 12); 37 (Suppl 2, 1 to 9, 11, 12); 38 (Suppl 3, 1 to 9, 11, 12); 39 (Suppl 3, 1 to 9, 11, 12); 41 (1 to 9, 11, 12); 42 (Suppl 2, 1 to 9, 11, 12); 43 (Suppl 2, 1 to 9, 11, 12); 44 (Suppl 3, 1 to 9, 11, 12); 45 (Suppl 3, 1 to 9, 11 to 13); 46 (Suppl 1, 1 to 9, 11 to 13); 47 (Suppl 2, 1 to 9, 11 to 13); 48 (Suppl 1, 1 to 9, 11 to 13); 49 (Suppl 1, 1 to 9, 11 to 13); 51 (Suppl 1, 1 to 9, 11 to 13); 52 (Suppl 2, 1 to 9, 11 to 13); 53 (Suppl 2, 1 to 9, 11 to 13); 54 (Suppl 2, 1 to 9, 11 to 13)
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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 : 3 (1 to 9, 11, 12); 4 (Suppl 1, 1 to 9, 11, 12); 5 (Suppl 1, 1 to 9, 11 to 13); 27 (1 to 9, 11, 12); 28 (1 to 9, 11, 12); 29 (1 to 9, 11, 12); 31 (1 to 9, 11, 12); 32 (Suppl 1, 1 to 9, 11, 12); 33 (Suppl 2, 1 to 9, 11, 12); 34 (Suppl 3, 1 to 9, 11, 12); 35 (Suppl 2, 1 to 9, 11, 12); 36 (Suppl 2, 1 to 9, 11, 12); 37 (Suppl 2, 1 to 9, 11, 12); 38 (Suppl 3, 1 to 9, 11, 12); 39 (Suppl 3, 1 to 9, 11, 12); 41 (1 to 9, 11, 12); 42 (Suppl 2, 1 to 9, 11, 12); 43 (Suppl 2, 1 to 9, 11, 12); 44 (Suppl 3, 1 to 9, 11, 12); 45 (Suppl 3, 1 to 9, 11 to 13); 46 (Suppl 1, 1 to 9, 11 to 13); 47 (Suppl 2, 1 to 9, 11 to 13); 48 (Suppl 1, 1 to 9, 11 to 13); 49 (Suppl 1, 1 to 9, 11 to 13); 51 (Suppl 1, 1 to 9, 11 to 13); 52 (Suppl 2, 1 to 9, 11 to 13); 53 (Suppl 2, 1 to 9, 11 to 13); 54 (Suppl 2, 1 to 9, 11 to 13)
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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 : 27 (1-4, 6-12); 28 (1-12); 29 (1-12); 30 (1-12); 31 (1-12); 32 (1-12); 33 (supplement-1, 1-12); 34 (1-3-12); 35 (1-12); 36 (supplement-2, 1-13); 37 (1-12); 38 (1-12); 39 (1-12); 40 (supplement-1, 1-12); 41 (supplement-1, 1, 2, 4-12); 42 (supplement-1, 1-12); 43 (supplement-1, 1-9, 11, 12); 44 (supplement-3, 1-12); 45 (supplement-3, 1-13); 46 (1-9, 11-13); 47 (1, 2, 4-8, 10-13); 48 (1-3, 6-9, 11-13); 49 (supplement-2, 1, 2, 4, 6, 7, 9-12)
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