| article html file updated | 30 August 2025 11:57 CEST | Update | https://www.mdpi.com/2075-4418/9/1/20 |
| article html file updated | 19 July 2022 04:19 CEST | Update | - |
| article html file updated | 11 February 2020 15:38 CET | Update | - |
| article html file updated | 14 October 2019 21:43 CEST | Update | - |
| article html file updated | 26 April 2019 17:34 CEST | Update | - |
| article html file updated | 12 April 2019 13:30 CEST | Update | - |
| article html file updated | 11 April 2019 08:48 CEST | Update | - |
| article html file updated | 3 April 2019 19:30 CEST | Update | - |
| article html file updated | 28 February 2019 22:36 CET | Update | - |
| article html file updated | 14 February 2019 01:23 CET | Original file | - |
| article pdf uploaded. | 13 February 2019 11:00 CET | Version of Record | https://www.mdpi.com/2075-4418/9/1/20/pdf |
| article xml uploaded. | 13 February 2019 11:00 CET | Update | https://www.mdpi.com/2075-4418/9/1/20/xml |
| article xml file uploaded | 13 February 2019 11:00 CET | Original file | - |
