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Scholars Portal
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Preserved
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2026-03-19
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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 4); 13 (1 to 4); 14 (1 to 4); 15 (1 to 4); 16 (1 to 4); 17 (1 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 (S, 1 to 4); 25 (1 to 4); 26 (1 to 4); 27 (1 to 4); 28 (1 to 6); 29 (1 to 6); 30 (1 to 6); 31 (1 to 6); 32 (1 to 6); 33 (1 to 6); 34 (1 to 6); 35 (1 to 6); 36 (1 to 6); 37 (1 to 6); 38 (1 to 6); 39 (1A, 2 to 6); 40 (1 to 6); 41 (1 to 6); 42 (1 to 6); 43 (1 to 6); 44 (1 to 6); 45 (1 to 6); 46 (1 to 6); 47 (1 to 6); 48 (1 to 6); 49 (1 to 6); 50 (1 to 6); 51 (1 to 6); 52 (1 to 6); 53 (1 to 6); 54 (1 to 6); 55 (1 to 6); 56 (1 to 6); 57 (1 to 6); 58 (1 to 6); 59 (1 to 6); 60 (1)
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Internet Archive
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Preserved
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2025-08-08
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14 to 32
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CLOCKSS Archive
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Preserved
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2026-04-06
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45 to 63
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Portico
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Preserved
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2026-04-09
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Preserved : 1965: 1(1-4), 1966: 2(1-4), 1967: 3(1-4), 1968: 4(1-4), 1969: 5(1-4), 1970: 6(1-4), 1971: 7(1-4), 1972: 8(1-4), 1973: 9(1-4), 1974: 10(1-4), 1975: 11(1-4), 1976: 12(1-4), 1977: 13(1-4), 1978: 14(1-4), 1979: 15(1-4), 1980: 16(1-4), 1981: 17(1-4), 1982: 18(1-4), 1983/1984: 19(1-4), 1984: 20(1-4), 1985: 21(1-4), 1986: 22(1-4), 1986/1987: 23(1-4), 1987: 24(1-4, S), 1988: 25(1-4), 1989: 26(1-4), 1990: 27(1-4), 1991: 28(1-6), 1992/1993: 29(1-6), 1993/1994: 30(1-6), 1994/1995: 31(1-6), 1995: 32(1-6), 1996: 33(1-6), 1997: 34(1-6), 1998: 35(1-6), 1999: 36(1-6), 2000: 37(1-6), 2001: 38(1-6), 2002: 39(1, 1, A, 2-6), 2003: 40(5-6), 2004: 41(1-6), 2005: 42(1-6), 2006: 43(1-6), 2007: 44(1-6), 2008: 45(1-6), 2009: 46(1-6), 2010: 47(1-6), 2011: 48(1-6), 2012: 49(1, 1, A, 2, 4-6), 2013: 50(1, 1, A, 2-6), 2014: 51(1, 1, A, 2-5), 2015: 52(1, 1, A, 2-6), 2015/2016: 53(1-6), 2017: 54(1, 1, A, 2-6), 2018: 55(1-6), 2019: 56(1, 1, A, 2-6), 2020: 57(1, 1, A, 2-6), 2020/2021: 58(1, 1, A, 2-6), 2022: 59(1, 1, A, 2-6), 2023: 60(1, 1, A, 2-6), 2024: 61(1, 1, A, 2-6), 2025: 62(1, 1, A, 2-6), 2026: 63(1-2)
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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 (1A, 2 to 6); 5 (1A, 2 to 6); 6 (1A, 2 to 6); 35 (1 to 6); 36 (1 to 6); 37 (1 to 6); 38 (1 to 6); 39 (1A, 2 to 6); 41 (1A, 2 to 6); 42 (1A, 2 to 6); 43 (1A, 2 to 6); 44 (1A, 2 to 6); 45 (1A, 2 to 6); 46 (1A, 2 to 6); 47 (1A, 2 to 6); 48 (1A, 2 to 6); 49 (1A, 2 to 6); 51 (1A, 2 to 6); 52 (1 to 6); 53 (1A, 2 to 6); 54 (1A, 2 to 6); 55 (1A, 2 to 6); 56 (1A, 2 to 6); 57 (1A, 2 to 6); 58 (1A, 2 to 6); 59 (1A, 2 to 6); 61 (1A, 2 to 6); 62 (1A, 2 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 : 4 (1A, 2 to 6); 5 (1A, 2 to 6); 6 (1A, 2 to 6); 35 (1 to 6); 36 (1 to 6); 37 (1 to 6); 38 (1 to 6); 39 (1A, 2 to 6); 41 (1A, 2 to 6); 42 (1A, 2 to 6); 43 (1A, 2 to 6); 44 (1A, 2 to 6); 45 (1A, 2 to 6); 46 (1A, 2 to 6); 47 (1A, 2 to 6); 48 (1A, 2 to 6); 49 (1A, 2 to 6); 51 (1A, 2 to 6); 52 (1 to 6); 53 (1A, 2 to 6); 54 (1A, 2 to 6); 55 (1A, 2 to 6); 56 (1A, 2 to 6); 57 (1A, 2 to 6); 58 (1A, 2 to 6); 59 (1A, 2 to 6); 61 (1A, 2 to 6); 62 (1A, 2 to 5)
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