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Portico
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Preserved
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2026-02-12
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Preserved : 2017: 1(1-2), 2018: 2(1-3), 2019: 3(1-3), 2020: 4(1, S 1, 2-3), 2021: 5(1-3), 2022: 6(1-3), 2023: 7(1), 2024: 8(1)
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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 1 (2); 2 (, 1, 2); 3 (, 1 to 3); 4 (, 1 to 3); 5 (, 1 to 3); 6 (, 1 to 3); 7 (, 1); 8 (, 1); 2018; 2019; 2020; 2021; 2022; 2023; 2024
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Swiss National Library
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Preserved
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2020-01-08
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1 (1, 2); 2 (1 to 3); 3 (1, 2)
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