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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 (5-6, 7, 8); 3 (9 to 12); 4 (13, 14-15, 16); 5 (17, 18, 19-20); 6 (21, 22, 23-24); 7 (25, 26, 27-28); 8 (29-30, 31, 32); 9 (33-34, 35, 36); 10 (37, 38, 39-40); 11 (41, 42, 43-44); 12 (45, 46); 13 (47, 48); 14 (49, 50); 15 (51, 52); 16 (53, 54); 17 (55, 56); 18 (58); 19 (59 to 61); 20 (62); 21 (65-66, 67); 22 (2, 3); 23 (1 to 3); 24 (1 to 3); 25 (1 to 3); 26 (1, 3); 27 (2, 3); 28 (1, 3); 29 (2, 3); 30 (1, 3); 31 (1 to 3); 32 (2); 33 (1, 2); 34 (1, 2); 35 (1 to 3); 36 (1 to 3); 37 (2-3); 38 (1 to 3); 39 (1, 2-3); 40 (1 to 3); 41 (1 to 3); 42 (1 to 3); 43 (1 to 3); 44 (1, 2-3)
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Portico
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Preserved
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2026-04-09
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Preserved : 1980: 1(1-4), 1981: 2(5-8), 1982: 3(9-12), 1983: 4(13-16), 1984: 5(17-20), 1985: 6(21-24), 1986: 7(25-28), 1987: 8(29-32), 1988: 9(33-36), 1989: 10(37-40), 1990: 11(41-44), 1991: 12(45-46), 1992: 13(47-48), 1993: 14(49-50), 1994: 15(51-52), 1995: 16(53-54), 1996: 17(55-56), 1997: 18(57-58), 1998: 19(59-61), 1999: 20(62-64), 2000: 21(65-67), 2001: 22(1-3), 2002: 23(1-3), 2003: 24(1-3), 2004: 25(1-3), 2005: 26(1-3), 2006: 27(1-3), 2007: 28(1-3), 2008: 29(1-3), 2009: 30(1-3), 2010: 31(1-3), 2011: 32(1-3), 2012: 33(1-3), 2013: 34(1-3), 2014: 35(1-3), 2015: 36(1-3), 2016: 37(1-3), 2017: 38(1-3), 2018: 39(1-3), 2019: 40(1-3), 2020: 41(1-3), 2021: 42(1-3), 2022: 43(1-3), 2023: 44(1-3)
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CLOCKSS Archive
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Preserved
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2026-04-06
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1 to 29, 38 to 44
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Portico
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Preserved
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2026-04-09
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Preserved : 1980: 1(1-4), 1981: 2(5-8), 1982: 3(9-12), 1983: 4(13-16), 1984: 5(17-20), 1985: 6(21-24), 1986: 7(25-28), 1987: 8(29-32), 1988: 9(33-36), 1989: 10(37-40), 1990: 11(41-44), 1991: 12(45-46), 1992: 13(47-48), 1993: 14(49-50), 1994: 15(51-52), 1995: 16(53-54), 1996: 17(55-56), 1997: 18(57-58), 1998: 19(59-61), 1999: 20(62-64), 2000: 21(65-67), 2001: 22(1-3), 2002: 23(1-3), 2003: 24(1-3), 2004: 25(1-3), 2005: 26(1-3), 2006: 27(1-3), 2007: 28(1-3), 2008: 29(1-3), 2009: 30(1-3), 2010: 31(1-3), 2011: 32(1-3), 2012: 33(1-3), 2013: 34(1-3), 2014: 35(1-3), 2015: 36(1-3), 2016: 37(1-3), 2017: 38(1-3), 2018: 39(1-3), 2019: 40(1-3), 2020: 41(1-3), 2021: 42(1-3), 2022: 43(1-3), 2023: 44(1-3), 2024: 45(1-3), 2025: 46(1-3), 2026: 47(1)
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CLOCKSS Archive
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In Progress
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2026-04-06
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1 to 47
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LOCKSS Archive
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In Progress
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2026-04-06
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1 to 23, 46, 47
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LOCKSS Archive
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Preserved
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2026-04-06
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24 to 45
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LOCKSS Archive
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In Progress
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2026-04-06
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1 to 14, 40, 41
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LOCKSS Archive
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Preserved
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2026-04-06
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15 to 39, 42 to 44
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CLOCKSS Archive
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Preserved
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2026-04-06
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29 to 38
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Library of Congress
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Preserved
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2025-04-07
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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, 2-3); 38 (1 to 3); 39 (1, 2-3); 40 (1 to 3); 41 (1 to 3); 42 (1 to 3); 43 (1 to 3); 44 (1, 2-3)
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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 (62, 63-64); 3 (1 to 3); 4 (1 to 3); 18 (57, 58); 19 (6, 59, 61); 21 (65-66, 67); 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); 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, 2-3); 38 (1 to 3); 39 (1, 2-3); 41 (1 to 3); 42 (1 to 3); 43 (1 to 3); 44 (1, 2-3)
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