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Scholars Portal
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Preserved
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2026-03-19
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Preserved : 12 (1 to 4); 13 (1 to 4); 14 (1 to 4); 15 (1 to 4); 16 (1 to 4); 17 (1 to 4); 18 (1 to 4); 19 (1 to 4); 20 (1 to 4); 21 (1 to 4); 22 (1 to 4); 23 (1 to 4); 24 (1 to 4); 25 (1 to 4); 26 (1 to 4); 27 (1 to 4); 28 (1 to 4); 29 (1 to 4); 30 (S1, 1 to 4); 31 (S1, 1 to 4); 32 (S1, 1 to 4); 33 (1 to 4); 34 (S1, 1 to 4); 35 (S1, 1 to 4); 36 (S1, 1 to 4); 37 (S1, 1 to 4); 38 (S1, 1 to 4); 39 (1 to 4); 40 (S1, 1 to 4); 41 (1)
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Internet Archive
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Preserved
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2025-08-08
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1 to 24
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Technische Informationsbibliothek
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Preserved
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2026-01-13
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vol.22:1-4;vol.23:1-4;vol.24:1-4;vol.25:1-4;vol.26:1-4;vol.27:1-4;vol.28:1-4;vol.29:1-4;vol.30:1-4,sup.S1;vol.31:1-4,sup.S1;vol.32:1-4,sup.S1;vol.33:1-4;vol.34:1-4,sup.S1;vol.35:1-4,sup.S1
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CLOCKSS Archive
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Preserved
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2026-04-06
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22 to 41
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Portico
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Preserved
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2026-04-02
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Preserved : 2012: 27(1-4), 2013: 28(1-4), 2014: 29(1-4), 2015: 30(1, S1, 2-4), 2016: 31(1, S1, 2-4), 2017: 32(1, S1, 2-4), 2018: 33(1-4), 2019: 34(1, S1, 2-4), 2020: 35(1, S1, 2-4), 2021: 36(1, S1, 2-4), 2022: 37(1, S1, 2-4), 2023: 38(1, S1, 2-4), 2024: 39(1-4), 2025: 40(1, S1, 2-4), 2026: 41(1)
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LOCKSS Archive
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In Progress
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2026-04-06
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Portico
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Preserved
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2026-04-02
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Preserved : 1999: 14(3)
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Portico
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Preserved
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2026-04-02
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Preserved : 2001: 16(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 : 12 (2-4); 13 (1-4); 14 (1-4); 15 (1-4); 16 (1-4); 17 (1-4); 18 (1-4); 19 (1-4); 20 (1-4); 21 (1, 3, 4); 22 (1-4)
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