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Portico
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Preserved
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2026-02-12
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Preserved : 1985: 2(1-4), 1986: 3(1-4)
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Portico
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Preserved
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2026-02-12
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Preserved : 1989: 6(2-4), 1990: 7(2-4), 1991: 8(1-4), 1992: 9(1-4)
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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 20 (2 to 4); 21 (, 1 to 4); 22 (, 1 to 4); 23 (, 1, 2, 3-4); 24 (, 1 to 4); 25 (, 1 to 4); 26 (, 1 to 4); 27 (, 1 to 4); 28 (, 1 to 3); 2003; 2004; 2005; 2006; 2007; 2008; 2009; 2010; 2011
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CLOCKSS Archive
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Preserved
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2026-02-09
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20 to 43
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Portico
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Preserved
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2026-02-12
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Preserved : 2003: 20(2-4), 2004: 21(1-4), 2005: 22(1-4), 2006: 23(1-4), 2007: 24(1-4), 2008: 25(1-4), 2009: 26(1-4), 2010: 27(1-4), 2011: 28(1-4), 2012: 29(1-4), 2013: 30(1-4), 2014: 31(1-6), 2015: 32(3-6), 2016: 33(1-6), 2017: 34(1-6), 2018: 35(1-6), 2019: 36(1-6), 2020: 37(1-6), 2021: 38(1-6), 2022: 39(1-6), 2023: 40(1-6), 2024: 41(1-6), 2025: 42(1-6), 2026: 43(1)
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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 : 2 (1-4); 3 (1-4); 6 (2-4); 7 (2-4); 8 (1-4); 9 (1-4); 20 (2-4); 21 (1-4); 22 (1-4); 23 (1, 2, 3-4); 24 (1-4); 25 (1-4); 26 (1-4); 27 (1-4); 28 (1-4); 29 (1-4); 30 (1-4); 31 (1-6); 32 (1-6); 33 (1-6); 34 (1-6); 35 (1-6); 36 (1-6)
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