| article html file updated | 30 August 2025 13:18 CEST | Update | https://www.mdpi.com/1996-1073/12/6/1137 |
| article html file updated | 19 July 2022 16:46 CEST | Update | - |
| article html file updated | 12 February 2020 00:22 CET | Update | - |
| article html file updated | 17 October 2019 02:27 CEST | Update | - |
| article html file updated | 25 April 2019 22:34 CEST | Update | - |
| article html file updated | 11 April 2019 17:40 CEST | Update | - |
| article html file updated | 4 April 2019 18:52 CEST | Update | - |
| article html file updated | 23 March 2019 09:58 CET | Original file | - |
| article pdf uploaded. | 23 March 2019 09:56 CET | Version of Record | https://www.mdpi.com/1996-1073/12/6/1137/pdf |
| article xml uploaded. | 23 March 2019 09:56 CET | Update | https://www.mdpi.com/1996-1073/12/6/1137/xml |
| article xml file uploaded | 23 March 2019 09:56 CET | Original file | - |
