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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 6); 2 (, 1 to 6); 6 (, 1 to 6); 9 (, 1 to 6); 10 (, 1 to 6); 11 (, 1 to 6); 14 (, 1, 2‐3, 4, 5‐6, 7, 8‐9, 10, 11); 15 (, 1, 2‐3, 4, 5‐6, 7, 8‐9, 10, 11‐12); 16 (, 1, 2‐3, 4, 5‐6, 7, 8‐9, 10, 11); 17 (, 1, 2‐3, 4, 5‐6, 7, 8‐9, 10, 11); 18 (, 1, 2‐3, 4, 5‐6, 7, 8‐9, 10, 11); 19 (, 1, 2‐3, 4, 5‐6, 7, 8‐9, 10, 11); 20 (, 1, 2‐3, 4, 5-6, 7, 8‐9, 10, 11); 21 (, 1, 2, 4, 5‐6, 7, 8‐9, 10, 11); 22 (, 1, 2‐3, 4, 5‐6, 7, 8‐9, 10, 11); 23 (, 1, 2‐3, 4, 5‐6, 7, 8‐9, 10, 11); 24 (, 1, 2‐3, 4, 5‐6, 7, 8‐9, 10, 11); 25 (, 1 to 8); 26 (, 1 to 8); 27 (, 1 to 5, 7 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 8 to 10 to 12); 36 (, 1 to 12); 37 (, 1 to 12); 38 (, 1 to 3 to 12); 39 (, 1 to 12); 40 (, 1 to 12); 41 (, 1 to 12, 99); 42 (, 1 to 12); 43 (, 1 to 12); 44 (, 1 to 12); 45 (, 1 to 12); 46 (, 1 to 12); 47 (, 1 to 12); 48 (, 1 to 12); 49 (, 1 to 12); 50 (, 1 to 12); 51 (, 1 to 12); 52 (, 1 to 12); 53 (, 1 to 12); 54 (, 1 to 12); 55 (, 1 to 10); 56 (, 4); 57 (, 5); 58 (, 1 to 12); 59 (, 1 to 12); 60 (, 1 to 12); 61 (, 1 to 12); 62 (, 1 to 12); 63 (, 1 to 12); 64 (, 1 to 12); 65 (, 1 to 7); 1961; 1962; 1966; 1969; 1970; 1971; 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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28 to 52
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Portico
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Preserved
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2026-02-12
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Preserved : 1974: 14(1-11), 1975: 15(1-12), 1976: 16(1-11), 1977: 17(1-11), 1978: 18(1-11), 1979: 19(1-11), 1980: 20(1-11), 1981: 21(1, S 1, 2, 4-11), 1982: 22(1-11), 1983: 23(1-11), 1984: 24(1-11), 1985: 25(1-8), 1986: 26(1, S 1, 2-8), 1987: 27(1-5, 7-12), 1988: 28(1-12), 1989: 29(1-12), 1990: 30(1-2, S 2, 3-12), 1991: 31(1-12), 1992: 32(1-12), 1993: 33(1-12), 1994: 34(1-12), 1995: 35(1-9, 9, S, 10-12), 1996: 36(1-12, S12), 1997: 37(1, S 1, 2-12), 1998: 38(1, S 1, 2, 2, S, 3-12), 1999: 39(1, S 1, 2-12), 2000: 40(1-12), 2001: 41(1, 1, S, 2-7, S 7, 8-12), 2002: 42(1, S 1, 2-12), 2003: 43(1-12), 2004: 44(1-12), 2005: 45(1-12), 2006: 46(1, S 1, 2-12), 2007: 47(1-12), 2008: 48(1-12), 2009: 49(1-12), 2010: 50(1-9, S 9, 10-12), 2011: 51(1-12), 2012: 52(1, S 1, 2-12), 2013: 53(1-12), 2014: 54(1-12), 2015: 55(1-3, S 3, 4-12), 2016: 56(1-7, S7, 8-12), 2017: 57(1-10, S10, 11-12), 2018: 58(1-10, S10, 11-12), 2019: 59(1, S1, 2-12), 2020: 60(1, S1, 2, S2, 3-12), 2021: 61(1, S1, 2, S2, 3-12), 2022: 62(1, S1, 2, S2, 3-12), 2023: 63(1, S1, 2, S2, 3-12), 2024: 64(1-12), 2025: 65(1-12), 2026: 66(1-2)
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CLOCKSS Archive
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Preserved
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2026-02-09
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1 to 47, 49 to 52
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LOCKSS Archive
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Preserved
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2026-02-09
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1 to 52
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Portico
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Preserved
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2026-02-12
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Preserved : 1961: 1(1-6), 1962: 2(1-6), 1963: 3(1-6), 1964: 4(1-6), 1965: 5(1-6), 1966: 6(1-6), 1967: 7(1-6), 1968: 8(1-6), 1969: 9(1-6), 1970: 10(1-6), 1971: 11(1-6), 1972: 12(1-11), 1973: 13(1-11), 1974: 14(1-11), 1975: 15(1-8, 10-11), 1976: 16(1-11), 1977: 17(1-11), 1978: 18(1-11), 1979: 19(1-5, 7-8, 10-11), 1980: 20(1-11), 1981: 21(1-8, 8, S, 10-11), 1982: 22(1-11), 1983: 23(1-11), 1984: 24(1-2, 4-11), 1985: 25(1-8), 1986: 26(1-8), 1987: 27(1-5, 7-12), 1988: 28(1-12), 1989: 29(1-12), 1990: 30(1-2, 2, S, 3-12), 1991: 31(1-12), 1992: 32(1-12), 1993: 33(1-12), 1994: 34(1-12), 1995: 35(1-9, 9, S, 9S-12), 1996: 36(1-12, S12), 1997: 37(1, 1, S, 2-12), 1998: 38(1-2, S2, 3-12, S12), 1999: 39(1-12), 2000: 40(1-12), 2001: 41(1-12), 2002: 42(1-12), 2003: 43(1-12), 2004: 44(1-12), 2005: 45(1-12), 2006: 46(1-12), 2007: 47(1-12), 2008: 48(1-12), 2009: 49(1-12), 2010: 50(1-12), 2011: 51(1-12), 2012: 52(1-12)
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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 9, 11, 12); 5 (S9, 1 to 9, 11, 12); 6 (S1, 1 to 9, 11, 12); 37 (S1, 1 to 9, 11, 12); 38 (1 to 3 to 9, 11, 12); 39 (S1, 1 to 9, 11, 12); 41 (S7, 1 to 9, 11, 12); 42 (S1, 1 to 9, 11, 12); 43 (1 to 9, 11, 12); 44 (1 to 9, 11, 12); 45 (1 to 9, 11, 12); 46 (S1, 1 to 9, 11, 12); 47 (1 to 9, 11, 12); 48 (1 to 9, 11, 12); 49 (1 to 9, 11, 12); 51 (1 to 9, 11, 12); 52 (S1, 1 to 9, 11, 12); 53 (1 to 9, 11, 12); 54 (1 to 9, 11, 12); 55 (S3, 1 to 9, 11, 12); 56 (, 1 to 9, 11, 12); 57 (, 1 to 9, 11, 12); 58 (S1, 1 to 9, 11, 12); 59 (S1, 1 to 9, 11, 12); 61 (S1, 1 to 9, 11, 12); 62 (S1, 1 to 9, 11, 12); 63 (S1, 1 to 6, 8, 9, 11, 12); 64 (1 to 6, 8, 9, 11, 12); 65 (1 to 6, 8, 9, 11)
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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 : 4 (1 to 9, 11, 12); 5 (S9, 1 to 9, 11, 12); 6 (S1, 1 to 9, 11, 12); 37 (S1, 1 to 9, 11, 12); 38 (1 to 9, 11, 12); 39 (S1, 1 to 9, 11, 12); 41 (S7, 1S, 2 to 9, 11, 12); 42 (S1, 1 to 9, 11, 12); 43 (1 to 9, 11, 12); 44 (1 to 9, 11, 12); 45 (1 to 9, 11, 12); 46 (S1, 1 to 9, 11, 12); 47 (1 to 9, 11, 12); 48 (1 to 9, 11, 12); 49 (1 to 9, 11, 12); 51 (1 to 9, 11, 12); 52 (S1, 1 to 9, 11, 12); 53 (1 to 9, 11, 12); 54 (1 to 9, 11, 12); 55 (S3, 1 to 9, 11, 12); 56 (, 1 to 9, 11, 12); 57 (, 1 to 9, 11, 12); 58 (S1, 1 to 9, 11, 12); 59 (S1, 1 to 9, 11, 12); 61 (S1, 1 to 9, 11, 12); 62 (S1, 1 to 9, 11, 12); 63 (S1, 1 to 6, 8, 9, 11, 12); 64 (1 to 6, 8, 9, 11, 12); 65 (1 to 6, 8, 9)
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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 : 1 (1-6); 2 (1-6); 6 (1-6); 9 (1-6); 10 (1-6); 11 (1-6); 16 (10); 17 (4, 10); 20 (5-6); 25 (7); 27 (1); 32 (6, 12); 36 (11); 37 (1); 38 (11, 12); 39 (1-12); 40 (1-12); 41 (1-12); 42 (1-12); 43 (1-12); 44 (1-12); 45 (1-12); 46 (1-12); 47 (1-6, 8, 10-12); 48 (1-11); 49 (2-12); 50 (1-12); 51 (1-9); 52 (1-12)
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