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Scholars Portal
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Preserved
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2026-03-19
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Preserved : 1 (2 to 5); 2 (1 to 5); 3 (1 to 5); 4 (1 to 5); 5 (1 to 5); 6 (1 to 5); 7 (1 to 5); 8 (1 to 5); 9 (1 to 5); 10 (1 to 5); 11 (1 to 5); 12 (1 to 5); 13 (1 to 5); 14 (1 to 5); 15 (1 to 5); 16 (1 to 5); 17 (1 to 5); 18 (1 to 5); 24 (1 to 4); 25 (1 to 4); 26 (sup1, 1 to 4); 27 (1 to 4); 28 (1 to 4); 29 (1 to 4); 30 (1 to 4); 31 (1 to 4); 32 (1 to 4); 33 (1 to 4); 34 (1 to 4); 35 (1 to 4); 36 (1 to 4); 37 (1 to 4); 38 (1 to 4); 39 (1 to 4); 40 (1 to 4); 41 (1 to 4); 42 (1 to 4); 43 (1 to 4); 44 (1 to 4); 45 (1 to 4); 46 (1 to 4); 47 (1 to 4); 48 (1 to 4); 49 (1 to 4); 50 (1 to 4); 51 (1, 4); 52 (sup1, 1 to 4); 53 (1 to 4); 54 (1 to 4); 55 (1, 3, 4); 56 (1 to 4); 57 (1 to 4); 58 (1 to 4); 59 (1 to 4); 60 (1 to 4); 61 (1 to 4); 62 (1 to 4); 63 (1 to 4); 64 (1 to 4)
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Internet Archive
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Preserved
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2025-08-08
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26 to 53
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LOCKSS Archive
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Preserved
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2026-04-06
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42, 43
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Portico
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Preserved
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2026-04-09
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Preserved : 2004: 43(1-4)
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CLOCKSS Archive
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Preserved
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2026-04-06
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1 to 60
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LOCKSS Archive
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Preserved
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2026-04-06
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1 to 63
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LOCKSS Archive
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In Progress
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2026-04-06
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64, 65
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Portico
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Preserved
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2026-04-09
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Preserved : 1962: 1(1-4), 1963: 2(1-3), 1964: 3(1-3), 1965: 4(1-3), 1966: 5(1-3), 1967: 6(1-3), 1968: 7(1-3), 1969: 8(1-3), 1970: 9(1-3), 1971: 10(1-5), 1972: 11(1-5), 1973: 12(1-5), 1974: 13(1-5), 1975: 14(1-5), 1976: 15(1-4), 1977: 16(1-4), 1978: 17(1-4), 1979: 18(1-4), 1980: 19(1-4), 1981: 20(1-4), 1982: 21(1-4), 1983: 22(1-4), 1984: 23(1-4), 1985: 24(1-4), 1986: 25(1-4), 1987: 26(1-4), 1988: 27(1-4), 1989: 28(1-4), 1990: 29(1-4), 1991: 30(1-4), 1992: 31(1-4), 1993: 32(1-4), 1994: 33(1-4), 1995: 34(1-4), 1996: 35(1-4), 1997: 36(1-4), 1998: 37(1-4), 1999: 38(1-4), 2000: 39(1-4), 2001: 40(1-4), 2002: 41(1-4), 2003: 42(1-4), 2004: 43(1-4), 2005: 44(1-4), 2006: 45(1-4), 2007: 46(1-4), 2008: 47(1-4), 2009: 48(1-4), 2010: 49(1-4), 2011: 50(1-4), 2012: 51(1-4), 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), 2026: 65(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 : 4 (1 to 4); 5 (1 to 4); 6 (1 to 4); 36 (1 to 4); 37 (1 to 4); 38 (1 to 4); 39 (1 to 4); 41 (1 to 4); 42 (1 to 4); 43 (1 to 4); 44 (1 to 4); 45 (1 to 4); 46 (1 to 4); 47 (1 to 4); 48 (1 to 4); 49 (1 to 4); 51 (1 to 4); 52 (sup1, 1 to 4); 53 (1 to 4); 54 (1 to 4); 55 (1 to 4); 56 (1 to 4); 57 (1 to 4); 58 (1 to 4); 59 (1 to 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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49 (2 to 4); 50 (1 to 4); 51 (1 to 4); 52 (sup1, 1 to 4); 53 (1 to 4); 54 (1 to 4); 55 (1 to 4); 56 (1 to 4); 57 (1 to 4); 58 (1 to 4); 59 (1 to 4); 60 (1 to 4); 61 (1 to 4); 62 (1 to 4); 63 (1 to 4)
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