| article html file updated | 30 August 2025 01:49 CEST | Update | https://www.mdpi.com/1422-0067/18/12/2557 |
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| article pdf uploaded. | 30 November 2017 03:26 CET | Updated version of record | https://www.mdpi.com/1422-0067/18/12/2557/pdf |
| article pdf uploaded. | 28 November 2017 10:39 CET | Version of Record | https://www.mdpi.com/1422-0067/18/12/2557/pdf-vor |
