| article html file updated | 31 August 2025 05:28 CEST | Update | https://www.mdpi.com/2220-9964/8/12/550 |
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| article pdf uploaded. | 18 December 2019 12:46 CET | Updated version of record | https://www.mdpi.com/2220-9964/8/12/550/pdf |
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| article pdf uploaded. | 1 December 2019 08:54 CET | Version of Record | https://www.mdpi.com/2220-9964/8/12/550/pdf-vor |
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