| article html file updated | 24 December 2025 16:17 CET | Update | https://www.mdpi.com/1996-1073/12/21/4157 |
| article html file updated | 31 August 2025 03:47 CEST | Update | - |
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| article html file updated | 15 November 2019 08:59 CET | Update | - |
| article html file updated | 4 November 2019 11:40 CET | Update | - |
| article pdf uploaded. | 4 November 2019 11:38 CET | Updated version of record | https://www.mdpi.com/1996-1073/12/21/4157/pdf |
| article xml uploaded. | 4 November 2019 11:38 CET | Update | https://www.mdpi.com/1996-1073/12/21/4157/xml |
| article xml file uploaded | 4 November 2019 11:38 CET | Update | - |
| article html file updated | 31 October 2019 08:27 CET | Original file | - |
| article pdf uploaded. | 31 October 2019 07:39 CET | Version of Record | https://www.mdpi.com/1996-1073/12/21/4157/pdf-vor |
| article xml uploaded. | 31 October 2019 07:39 CET | Update | - |
| article xml file uploaded | 31 October 2019 07:39 CET | Original file | - |
