| article html file updated | 30 August 2025 11:57 CEST | Update | https://www.mdpi.com/2079-9721/7/1/21 |
| article html file updated | 19 July 2022 04:23 CEST | Update | - |
| article html file updated | 11 February 2020 15:41 CET | Update | - |
| article html file updated | 14 October 2019 21:56 CEST | Update | - |
| article html file updated | 26 April 2019 17:29 CEST | Update | - |
| article html file updated | 12 April 2019 13:25 CEST | Update | - |
| article html file updated | 10 April 2019 17:04 CEST | Update | - |
| article html file updated | 3 April 2019 19:37 CEST | Update | - |
| article html file updated | 28 February 2019 22:46 CET | Update | - |
| article html file updated | 13 February 2019 12:17 CET | Original file | - |
| article pdf uploaded. | 13 February 2019 12:15 CET | Version of Record | https://www.mdpi.com/2079-9721/7/1/21/pdf |
| article xml uploaded. | 13 February 2019 12:15 CET | Update | https://www.mdpi.com/2079-9721/7/1/21/xml |
| article xml file uploaded | 13 February 2019 12:15 CET | Original file | - |