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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; 4; 5 (2); 6 (1); 7; 8; 9; 10; 11; 12; 14; 15; 16; 17; 18; 19; 20; 21; 22; 23; 24; 25; 26; 27; 28; 29; 30; 31 (2, 3); 32 (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, 2/3); 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); 48 (1)
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CLOCKSS Archive
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In Progress
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2026-04-27
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1, 2, 4 to 12, 15 to 26, 36, 37, 41 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, 2, 4 to 12, 15 to 22, 24, 47, 48
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Portico
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Preserved
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2026-04-23
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Preserved : 1962: 7(1), 1964: 8(1), 1967: 9(1), 1971: 10(1), 1975: 11(1), 1976: 12(1)
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Portico
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Preserved
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2026-04-23
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Preserved : 1980: 14(1), 1982: 15(1), 1983: 16(1), 1985: 17(1), 1988: 18(1), 1990: 19(1), 1992: 20(1), 1994: 21(1), 1997: 22(1), 2000: 23(1), 2002: 24(1), 2003: 25(1), 2004: 26(1), 2005: 27(1), 2006: 28(1), 2007: 29(1), 2008: 30(1), 2009: 31(1-3), 2010: 32(1-3), 2011: 33(1-3), 2012: 34(1-3), 2013: 35(1-3), 2014: 36(1-3), 2015: 37(1-3), 2016: 38(1-3), 2017: 39(1-3), 2018: 40(1-3), 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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23, 25 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 to 35, 38 to 40
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Portico
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Preserved
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2026-04-23
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Preserved : 1914: 1(1), 1921: 2(1)
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Portico
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Preserved
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2026-04-23
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Preserved : 1929: 4(1), 1930: 5(1-2), 1936: 6(1), 1962: 7(1), 1964: 8(1), 1967: 9(1), 1936: 10(1), 1975: 11(1), 1976: 12(1)
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Portico
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Preserved
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2026-04-23
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Preserved : 1980: 14(1), 1982: 15(1), 1983: 16(1), 1985: 17(1), 1988: 18(1), 1990: 19(1), 1992: 20(1), 1994: 21(1), 1997: 22(1), 2000: 23(1), 2003: 24(1), 2003: 25(1), 2004: 26(1), 2005: 27(1), 2006: 28(1), 2007: 29(1), 2008: 30(1), 2009: 31(1, 3), 2010: 32(1-3), 2011: 33(2-3), 2012: 34(1-3), 2013: 35(1-3), 2014: 36(1-3), 2015: 37(1-3), 2016: 38(1-3), 2017: 39(1-3), 2018: 40(1)
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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 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, 2-3); 41 (1 to 3); 42 (1 to 3); 43 (1 to 3); 44 (1 to 3); 45 (1 to 3); 46 (1, 2)
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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; 4; 5 (2); 6 (1); 7; 8; 9; 10; 11; 12; 14; 15; 16; 17; 18; 19; 20; 21; 22; 23; 24; 25; 26; 27; 28; 29; 30; 31 (2, 3); 32 (1-3); 33 (1-3); 34 (1-3); 35 (1-3); 36 (2, 3); 37 (1-3); 38 (1-3); 39 (1-3); 40 (1, 2-3); 41 (1, 2)
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