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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 4); 2 (5 to 8); 3 (9 to 12); 4 (sup1, 13 to 16); 5 (17, 18, 19-20); 6 (sup3, 21 to 24); 7 (25, 26, 27-28); 8 (29, 30, 31-32); 9 (33, 34, 35-36); 10 (37, 38, 39-40); 11 (41 to 44); 12 (45 to 48); 13 (49, 50, 51-52); 14 (53 to 56); 15 (57, 58, 59-60); 16 (61, 62-63, 64); 17 (66, 67-68); 18 (69-70, 72); 19 (75); 20 (77); 21 (81 to 84); 22 (87, 88); 23 (91, 92); 24 (3); 25 (4); 26 (2, 4); 27 (2); 28 (1 to 4); 29 (1, 4); 30 (1, 2, 4); 31 (1 to 4); 32 (1, 2, 4); 34 (1, 4); 35 (1, 2); 36 (3); 37 (1 to 4); 38 (1 to 4); 39 (1, 3, 4); 40 (1 to 3); 41 (1 to 4); 42 (1 to 4); 43 (1 to 4); 44 (1 to 4); 45 (1 to 4); 46 (1 to 4)
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Portico
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Preserved
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2026-04-16
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Preserved : 1978: 1(1-4), 1979: 2(5-8), 1980: 3(9-12), 1981: 4(sup1-sup2, 13-16), 1982: 5(17-20), 1983: 6(sup3, 21-24), 1984: 7(25-28), 1985: 8(29-32), 1986: 9(33-36), 1987: 10(37-40), 1988: 11(41-44), 1989: 12(45-48), 1990: 13(49-52), 1991: 14(53-56), 1992: 15(57-60), 1993: 16(61-64), 1994: 17(65-68), 1995: 18(69-72), 1996: 19(73-76), 1997: 20(77-80), 1998: 21(81-84), 1999: 22(85-88), 2000: 23(89-92), 2001: 24(1-4), 2002: 25(1-4), 2003: 26(1-4), 2004: 27(1-4), 2005: 28(1-4), 2006: 29(1-4), 2007: 30(1-4), 2008: 31(1-4), 2009: 32(1-4), 2010: 33(1-4), 2011: 34(1-4), 2012: 35(1-4), 2013: 36(1-4), 2014: 37(1-4), 2015: 38(1-4), 2016: 39(1-4), 2017: 40(1-4), 2018: 41(1-4), 2019: 42(1-4), 2020: 43(1-4), 2021: 44(1-4), 2022: 45(1-4), 2023: 46(1-4)
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CLOCKSS Archive
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Preserved
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2026-04-13
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1 to 31, 39, 41 to 46
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Portico
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Preserved
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2026-04-16
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Preserved : 1978: 1(1-4), 1979: 2(5-8), 1980: 3(9-12), 1981: 4(1, S, 2, S, 13-16), 1982: 5(17-20), 1983: 6(3, S, 21-24), 1984: 7(25-28), 1985: 8(29-32), 1986: 9(33-36), 1987: 10(37-40), 1988: 11(41-44), 1989: 12(45-48), 1990: 13(49-52), 1991: 14(53-56), 1992: 15(57-60), 1993: 16(61-64), 1994: 17(65-68), 1995: 18(69-72), 1996: 19(73-76), 1997: 20(77-80), 1998: 21(81-84), 1999: 22(85-88), 2000: 23(89-92), 2001: 24(1-4), 2002: 25(1-4), 2003: 26(1-4), 2004: 27(1-4), 2005: 28(1-4), 2006: 29(1-4), 2007: 30(1-4), 2008: 31(1-4), 2009: 32(1-4), 2010: 33(1-4), 2011: 34(1-4), 2012: 35(1-4), 2013: 36(1-4), 2014: 37(1-4), 2015: 38(1-4), 2016: 39(1-4), 2017: 40(1-4), 2018: 41(1-4), 2019: 42(1-4), 2020: 43(1-4), 2021: 44(1-4), 2022: 45(1-4), 2023: 46(1-4), 2024: 47(1-4), 2025: 48(1-4), 2026: 49(1)
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CLOCKSS Archive
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In Progress
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2026-04-13
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1 to 49
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LOCKSS Archive
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In Progress
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2026-04-13
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1 to 16, 48, 49
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LOCKSS Archive
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Preserved
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2026-04-13
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47
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LOCKSS Archive
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Preserved
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2026-04-13
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17 to 46
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CLOCKSS Archive
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Preserved
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2026-04-13
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31 to 40
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Library of Congress
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Preserved
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2025-04-07
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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, 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 : 2 (8, 77 to 79); 3 (1 to 4); 4 (1 to 4); 21 (81 to 84); 22 (85 to 88); 23 (9, 89, 91, 92); 24 (1 to 4); 25 (1 to 4); 26 (1 to 4); 27 (1 to 4); 28 (1 to 4); 29 (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); 41 (1 to 4); 42 (1 to 4); 43 (1 to 4); 44 (1 to 4); 45 (1 to 4); 46 (1 to 4)
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