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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; 14; 15; 16; 17; 18; 19; 20; 21; 22; 23; 24; 25; 26; 27; 28; 29; 30 (2); 31 (1, 2); 32 (1, 2); 33 (1, 2); 34 (1, 2); 35 (1); 36 (2); 37 (1, 2); 38 (1, 2); 39 (1, 2); 40 (1, 2); 41 (1 to 3); 42 (1 to 3); 43 (1 to 3); 44 (1 to 3); 45 (1 to 3); 46 (1 to 3); 47 (1 to 3)
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CLOCKSS Archive
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In Progress
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2026-04-27
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1 to 26, 28, 29, 38 to 48
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LOCKSS Archive
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In Progress
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2026-04-27
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1 to 21, 31, 47, 48
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Portico
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Preserved
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2026-04-30
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Preserved : 1993: 1(1), 1994: 2(1), 1994: 3(1), 1995: 4(1), 1995: 5(1), 1996: 6(1), 1996: 7(1), 1997: 8(1), 1997: 9(1), 1998: 10(1), 1998: 11(1), 1999: 12(1), 1999: 13(1), 2000: 14(1), 2000: 15(1), 2001: 16(1), 2001: 17(1), 2002: 18(1), 2002: 19(1), 2003: 20(1), 2003: 21(1), 2004: 22(1), 2004: 23(1), 2005: 24(1), 2005: 25(1), 2006: 26(1), 2006: 27(1), 2007: 28(1), 2007: 29(1), 2008: 30(1-2), 2009: 31(1-2), 2010: 32(1-2), 2011: 33(1-2), 2012: 34(1-2), 2013: 35(1-2), 2014: 36(1-2), 2015: 37(1-2), 2016: 38(1-2), 2017: 39(1-2), 2018: 40(1-2), 2019: 41(1-3), 2020: 42(1-3), 2021: 43(1-3), 2022: 44(1-3), 2023: 45(1-3), 2024: 46(1-3), 2025: 47(1-3), 2026: 48(1)
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LOCKSS Archive
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Preserved
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2026-04-27
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22 to 30, 32 to 46
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CLOCKSS Archive
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Preserved
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2026-04-27
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27, 30 to 37
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Library of Congress
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Preserved
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2025-04-07
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32 (1, 2); 33 (1, 2); 34 (1, 2); 35 (1, 2); 36 (1, 2); 37 (1, 2); 38 (1, 2); 39 (1, 2); 40 (1, 2); 41 (1 to 3); 42 (1 to 3); 43 (1 to 3); 44 (1 to 3); 45 (1 to 3); 46 (1 to 3)
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National Library of the Netherlands
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Preserved
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2024-12-15
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Preserved : 1 (1); 2; 3; 4; 5; 6; 7; 8; 9; 10; 11; 12; 13; 14; 15; 16; 17; 18; 19; 20; 21; 22; 23; 24; 25; 26; 27; 28; 29; 30; 31 (2); 32 (1, 2); 33 (1, 2); 34 (1, 2); 35 (1, 2); 36 (1, 2); 37 (1, 2); 38 (1, 2); 39 (1, 2); 40 (1, 2); 41 (1-3)
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British Library
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Preserved
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2019-09-18
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Preserved : 36 (1 to 2), 37 (1 to 2), 38 (1 to 2), 39 (1 to 2), 40 (1)
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