| article html file updated | 24 December 2025 14:08 CET | Update | https://www.mdpi.com/2079-3200/6/1/6 |
| article html file updated | 30 August 2025 02:45 CEST | Update | - |
| article html file updated | 21 August 2025 19:34 CEST | Update | - |
| article html file updated | 23 February 2021 07:33 CET | Update | - |
| article html file updated | 9 February 2020 07:46 CET | Update | - |
| article html file updated | 1 October 2019 01:54 CEST | Update | - |
| article html file updated | 1 May 2019 16:01 CEST | Update | - |
| article html file updated | 17 April 2019 15:30 CEST | Update | - |
| article html file updated | 29 March 2019 01:52 CET | Update | - |
| article html file updated | 28 February 2018 03:33 CET | Update | - |
| article xml uploaded. | 28 February 2018 03:31 CET | Update | https://www.mdpi.com/2079-3200/6/1/6/xml |
| article pdf uploaded. | 28 February 2018 03:31 CET | Updated version of record | https://www.mdpi.com/2079-3200/6/1/6/pdf |
| article html file updated | 26 February 2018 18:18 CET | Original file | - |
| article xml uploaded. | 26 February 2018 18:17 CET | Original file | - |
| article pdf uploaded. | 26 February 2018 18:17 CET | Version of Record | https://www.mdpi.com/2079-3200/6/1/6/pdf-vor |
