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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 22 (1 to 12); 23 (, 1 to 12); 24 (, 1 to 12); 25 (, 1 to 12); 26 (, 1 to 12); 27 (, 1 to 12); 28 (, 1 to 12); 29 (, 1 to 12); 30 (, 1 to 12); 31 (, 1 to 12); 32 (, 1 to 12); 33 (, 1 to 12); 34 (, 1 to 12); 35 (, 1 to 12); 36 (, 1 to 12); 37 (, 1 to 12); 38 (, 1 to 12); 39 (, 1 to 12); 40 (, 1 to 12); 41 (, 1 to 12); 42 (, 1_suppl, 2 to 12); 43 (, 1 to 12); 44 (, 1 to 12); 45 (, 1 to 12); 46 (, 1 to 7, 8-9, 10-11, 12); 47 (, 2, 4 to 12); 48 (, 1 to 7); 1999; 2000; 2001; 2002; 2003; 2004; 2005; 2006; 2007; 2008; 2009; 2010; 2011; 2012; 2013; 2014; 2015; 2016; 2017; 2018; 2019; 2020; 2021; 2022; 2023; 2024; 2025
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Portico
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Preserved
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2026-02-12
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Preserved : 1978: 1(4, 6)
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Portico
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Preserved
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2026-02-12
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Preserved : 1980: 3(1-6), 1981: 4(2-6), 1982: 5(1, 3-6), 1983: 6(2-3, 5-6), 1984: 7(1-6), 1985: 8(2-3), 1986: 9(1, 3-6), 1987: 10(1-6), 1988: 11(1-5), 1989: 12(1-12), 1990: 13(1-12), 1991: 14(1-12), 1992: 15(1-12), 1993: 16(1-5, 5, S, 6-12), 1994: 17(1-12), 1995: 18(1-12), 1996: 19(1-5, 7-12), 1997: 20(1-12), 1998: 21(1-6, 6, S, 7-12), 1999: 22(1-12), 2000: 23(1-12), 2001: 24(1-12), 2002: 25(1-12), 2003: 26(1-12), 2004: 27(1-12), 2005: 28(1-12), 2006: 29(1-12), 2007: 30(1-12), 2008: 31(1-12), 2009: 32(1-12), 2010: 33(1-12), 2011: 34(1-12), 2012: 35(1-12), 2013: 36(1-12), 2014: 37(1-12), 2015: 38(1-12), 2016: 39(1-12), 2017: 40(1-12), 2018: 41(1-12), 2019: 42(1, 1, S, 2-12), 2020: 43(1-12), 2021: 44(1)
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CLOCKSS Archive
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In Progress
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2026-02-09
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5 to 27, 29, 41 to 48
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LOCKSS Archive
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In Progress
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2026-02-09
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5 to 25, 48
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LOCKSS Archive
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Preserved
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2026-02-09
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26 to 47
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CLOCKSS Archive
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Preserved
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2026-02-09
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28, 30 to 40
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Portico
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Preserved
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2026-02-12
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Preserved : 2021: 44(3-12), 2022: 45(1-12), 2023: 46(1-12), 2024: 47(1-12), 2025: 48(1-12), 2026: 49(1)
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British Library
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Preserved
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2019-09-18
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Preserved : 38 (2 to 5; 7 to 9), 39 (5), 40 (4; 7 to 8), 41 (1 to 10)
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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 (4, 6); 3 (2, 5, 6); 4 (2-6); 5 (1, 3-6); 6 (2, 3, 5, 6); 7 (1-6); 8 (2, 3); 9 (1, 3-6); 10 (1-6); 11 (1-5); 12 (1-4, 6, 8-12); 13 (1-12); 14 (1-12); 15 (1-12); 16 (1-12); 17 (1-12); 18 (1-12); 19 (1-5, 7-12); 20 (1-12); 21 (1, 3-7, 9-12); 22 (1-12); 23 (1-12); 24 (1-12); 25 (1-12); 26 (1-12); 27 (1-12); 28 (1-12); 29 (1-12); 30 (1-12); 31 (1-12); 32 (1-12); 33 (1-12); 34 (1-12); 35 (1-12); 36 (1-12); 37 (1-12); 38 (1-12); 39 (1-12); 40 (1-12); 41 (1-12); 42 (1-12); 142 (1)
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