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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; 3; 4; 5; 6; 7; 8; 9; 10; 11; 12; 13 (sup1, 1); 14; 15 (sup1, 1); 16; 17 (sup1, 1); 18; 19; 20; 21; 23 (2); 24 (1, 2); 25 (1, 2); 26 (sup1, 1, 2); 27 (1, 2); 28 (1, 2); 29 (1 to 3); 30 (sup1, 1 to 3); 31 (1 to 3); 32 (sup1, 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 to 3); 42 (1 to 3); 43 (1, 2); 44 (1 to 3); 45 (1, 2)
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LOCKSS Archive
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Preserved
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2026-05-18
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30 to 32
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CLOCKSS Archive
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Preserved
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2026-05-18
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30 to 35
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Portico
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Preserved
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2026-05-14
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Preserved : 1981: 1(1), 1982: 2(1), 1983: 3(1), 1984: 4(1), 1985: 5(1), 1986: 6(1), 1987: 7(1), 1988: 8(1), 1989: 9(1), 1990: 10(1), 1991: 11(1), 1992: 12(1), 1993: 13(1), 1994: 14(1), 1995: 15(1), 1996: 16(1), 1997: 17(1), 1998: 18(1), 1999: 19(1), 2000: 20(1), 2001: 21(1)
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Portico
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Preserved
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2026-05-14
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Preserved : 2003: 23(1-2), 2004: 24(1-2), 2005: 25(1-2), 2006: 26(1-2), 2007: 27(1-2), 2008: 28(1-2), 2009: 29(1-3), 2010: 30(1, S 1, 2-3), 2011: 31(1-3), 2012: 32(1-3), 2013: 33(1-3), 2014: 34(1-3), 2015: 35(1-3)
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LOCKSS Archive
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Preserved
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2026-05-18
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1 to 21, 23 to 44
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CLOCKSS Archive
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Preserved
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2026-05-18
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1 to 21, 23 to 45
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LOCKSS Archive
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In Progress
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2026-05-18
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45
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Portico
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Preserved
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2026-05-14
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Preserved : 1993: 13(sup1)
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Portico
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Preserved
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2026-05-14
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Preserved : 1995: 15(sup1, sup2)
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Portico
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Preserved
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2026-05-14
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Preserved : 1997: 17(1, sup1)
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Portico
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Preserved
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2026-05-14
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Preserved : 2004: 24(1-2), 2005: 25(1-2), 2006: 26(1-2), 2007: 27(1-2), 2008: 28(1-2), 2009: 29(1-3), 2010: 30(1-3), 2011: 31(1-3), 2012: 32(1-3), 2013: 33(1-3), 2014: 34(1-3), 2015: 35(1-3), 2016: 36(1-3), 2017: 37(1-3), 2018: 38(1-3), 2019: 39(1-3), 2020: 40(1-3), 2021: 41(1-3), 2022: 42(1-3), 2023: 43(1-3), 2024: 44(1-3), 2025: 45(1-2)
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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 : 37 (2, 3); 38 (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 : 37 (2, 3); 38 (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 : 2; 3 (sup1, 1 to 3); 4 (1 to 3); 17 (1); 18; 19; 21; 23 (2); 24 (1, 2); 25 (1, 2); 26 (1, 2); 27 (1, 2); 28 (1, 2); 29 (1 to 3); 31 (1 to 3); 32 (sup1, 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, 2)
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Library of Congress
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Preserved
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2025-04-07
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30 (sup2, sup1); 32 (sup1); 37 (2, 3); 38 (1 to 3); 39 (1 to 3); 40 (1 to 3); 41 (1 to 3); 42 (1 to 3); 43 (1 to 3); 44 (1)
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