| article html file updated | 31 August 2025 09:38 CEST | Update | https://www.mdpi.com/2223-7747/9/2/135 |
| article html file updated | 20 July 2022 18:10 CEST | Update | - |
| article html file updated | 6 March 2020 08:18 CET | Update | - |
| article html file updated | 15 February 2020 05:10 CET | Update | - |
| article html file updated | 26 January 2020 12:18 CET | Original file | - |
| article pdf uploaded. | 26 January 2020 12:17 CET | Updated version of record | https://www.mdpi.com/2223-7747/9/2/135/pdf |
| article xml uploaded. | 26 January 2020 12:17 CET | Update | https://www.mdpi.com/2223-7747/9/2/135/xml |
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| article pdf uploaded. | 23 January 2020 09:46 CET | Updated version of record | https://www.mdpi.com/2223-7747/9/2/135/pdf-vor |
| article pdf uploaded. | 21 January 2020 16:43 CET | Version of Record | https://www.mdpi.com/2223-7747/9/2/135/pdf-vor |
| article xml file uploaded | 21 January 2020 16:43 CET | Original file | - |
