| article html file updated | 30 August 2025 12:18 CEST | Update | https://www.mdpi.com/2079-9292/8/2/251 |
| article html file updated | 19 July 2022 15:30 CEST | Update | - |
| article html file updated | 11 February 2020 18:01 CET | Update | - |
| article html file updated | 15 October 2019 12:04 CEST | Update | - |
| article html file updated | 26 April 2019 12:35 CEST | Update | - |
| article html file updated | 12 April 2019 08:04 CEST | Update | - |
| article html file updated | 4 April 2019 01:54 CEST | Update | - |
| article html file updated | 4 March 2019 05:54 CET | Update | - |
| article html file updated | 1 March 2019 10:22 CET | Update | - |
| article html file updated | 22 February 2019 12:57 CET | Original file | - |
| article pdf uploaded. | 22 February 2019 12:56 CET | Version of Record | https://www.mdpi.com/2079-9292/8/2/251/pdf |
| article xml uploaded. | 22 February 2019 12:56 CET | Update | https://www.mdpi.com/2079-9292/8/2/251/xml |
| article xml file uploaded | 22 February 2019 12:56 CET | Original file | - |