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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, 2); 2 (1, 2); 3 (sup1, 1, 2); 4 (1, 2); 5 (1, 2); 6 (1, 2); 7 (1, 2); 8 (1, 2); 14 (1, 2); 15 (1, 2-3); 16 (1 to 3); 17 (1 to 3); 18 (1 to 3); 19 (1 to 3); 20 (1 to 3); 21 (1 to 3); 22 (1 to 3); 23 (1 to 3); 24 (1 to 3); 25 (1 to 3); 26 (1 to 3); 27 (1 to 3); 28 (1 to 3); 29 (1 to 3); 30 (1 to 3); 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, 3); 42 (1 to 3); 43 (1 to 3); 44 (1 to 3); 45 (1-2, 3); 46 (1); 47 (2, 3); 48 (1 to 3); 49 (1 to 3); 50 (1-2, 3); 51 (1 to 3); 52 (1, 2-3); 53 (1)
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LOCKSS Archive
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Preserved
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2026-04-06
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1 to 52
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CLOCKSS Archive
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Preserved
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2026-04-06
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1 to 52
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Portico
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Preserved
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2026-04-09
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Preserved : 1972: 1(1-2), 1973: 2(1-2), 1974: 3(1-2), 1975: 4(1-2), 1976: 5(1-2), 1977: 6(1-2), 1978: 7(1-2), 1979: 8(1-2), 1980: 9(1-2), 1981: 10(1-2), 1982: 11(1-2), 1983: 12(1-2), 1984: 13(1-2), 1985: 14(1-2), 1986: 15(1), 1987: 16(1-3), 1988: 17(1-3), 1989: 18(1-3), 1990: 19(1-3), 1991: 20(1-3), 1992: 21(1-3), 1993: 22(1-3), 1994: 23(1-3), 1995: 24(1-3), 1996: 25(1-3), 1997: 26(1-3), 1998: 27(1-3), 1999: 28(1-3), 2000: 29(1-3), 2001: 30(1-3), 2002: 31(1-3), 2003: 32(1-3), 2004: 33(1-3), 2005: 34(1-3), 2006: 35(1-3), 2007: 36(1-3), 2008: 37(1-3), 2009: 38(1-3), 2010: 39(1-3), 2011: 40(1-3), 2012: 41(1-3), 2013: 42(1-3), 2014: 43(1-3), 2015: 44(1-3), 2016: 45(1-3), 2017: 46(1-3), 2018: 47(1-3), 2019: 48(1-3), 2020: 49(1-3), 2021: 50(1-3), 2022: 51(1-3), 2023: 52(1-3), 2024: 53(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 : 3 (1 to 3); 4 (1 to 3); 5 (1-2, 3); 26 (1 to 3); 27 (1 to 3); 28 (1 to 3); 29 (1 to 3); 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); 41 (1 to 3); 42 (1 to 3); 43 (1 to 3); 44 (1 to 3); 45 (1-2, 3); 46 (1 to 3); 47 (1 to 3); 48 (1 to 3); 49 (1 to 3); 51 (1 to 3); 52 (1, 2-3)
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Library of Congress
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Preserved
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2025-04-07
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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 (1-2, 3); 46 (1 to 3); 47 (1 to 3); 48 (1 to 3); 49 (1 to 3); 50 (1-2, 3); 51 (1 to 3); 52 (1)
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