| article html file updated | 31 August 2025 00:16 CEST | Update | https://www.mdpi.com/2072-6694/11/9/1221 |
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| article pdf uploaded. | 22 August 2019 13:25 CEST | Updated version of record | https://www.mdpi.com/2072-6694/11/9/1221/pdf |
| article xml uploaded. | 22 August 2019 13:25 CEST | Update | https://www.mdpi.com/2072-6694/11/9/1221/xml |
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| article pdf uploaded. | 21 August 2019 16:39 CEST | Version of Record | https://www.mdpi.com/2072-6694/11/9/1221/pdf-vor |
| article xml file uploaded | 21 August 2019 16:38 CEST | Original file | - |
