| article html file updated | 30 August 2025 11:17 CEST | Update | https://www.mdpi.com/2079-9268/9/1/4 |
| article html file updated | 20 July 2022 16:55 CEST | Update | - |
| article html file updated | 11 February 2020 10:24 CET | Update | - |
| article html file updated | 27 April 2019 03:38 CEST | Update | - |
| article html file updated | 12 April 2019 23:40 CEST | Update | - |
| article html file updated | 3 April 2019 06:50 CEST | Update | - |
| article html file updated | 22 January 2019 03:32 CET | Original file | - |
| article pdf uploaded. | 21 January 2019 08:15 CET | Version of Record | https://www.mdpi.com/2079-9268/9/1/4/pdf |
| article xml uploaded. | 21 January 2019 08:15 CET | Update | https://www.mdpi.com/2079-9268/9/1/4/xml |
| article xml file uploaded | 21 January 2019 08:15 CET | Original file | - |
