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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; 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; 32; 33; 34; 36; 37; 38; 39; 40; 41; 42; 43; 44; 45; 46; 47; 48
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Internet Archive
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Preserved
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2025-08-08
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14 to 36
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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 27
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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 31, 40 to 48
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Portico
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Preserved
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2026-04-09
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Preserved : 1973: 1(1), 1974: 2(1), 1975: 3(1), 1976: 4(1), 1977: 5(1), 1978: 6(1), 1979: 7(1), 1980: 8(1), 1981: 9(1), 1983: 10(1), 1984: 11(1), 1985: 12(1), 1986: 13(1), 1987: 14(1), 1988: 15(1), 1990: 16(1), 1991: 17(1), 1992: 18(1), 1993: 19(1), 1994: 20(1), 1995: 21(1), 1997: 22(1), 1998: 23(1), 1999: 24(1), 2000: 25(1), 2002: 26(1), 2003: 27(1), 2004: 28(1), 2005: 29(1), 2006: 30(1), 2007: 31(1), 2008: 32(1), 2009: 33(1), 2010: 34(1), 2011: 35(1), 2012: 36(1), 2013: 37(1), 2014: 38(1), 2015: 39(1), 2016: 40(1), 2017: 41(1), 2018: 42(1), 2019: 43(1), 2020: 44(1), 2021: 45(1), 2022: 46(1), 2023: 47(1), 2024: 48(1)
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LOCKSS Archive
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Preserved
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2026-04-06
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28 to 48
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CLOCKSS Archive
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Preserved
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2026-04-06
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32 to 39
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Library of Congress
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Preserved
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2025-04-07
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34 (1); 35 (1); 36 (1); 37 (1); 38 (1); 39 (1); 40 (1); 41 (1); 42 (1); 43 (1); 44 (1); 45 (1); 46 (1); 47 (1); 48 (1)
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National Library of the Netherlands
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Preserved
|
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; 32; 33; 34; 37; 38; 39; 40; 41; 42; 43
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British Library
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Preserved
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2019-09-18
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Preserved : 38 (1), 39 (1), 40 (1), 41 (1), 42 (1)
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