| article html file updated | 30 August 2025 00:07 CEST | Update | https://www.mdpi.com/2072-6651/9/1/4 |
| article html file updated | 16 July 2022 04:16 CEST | Update | - |
| article html file updated | 7 February 2020 20:16 CET | Update | - |
| article html file updated | 22 September 2019 14:59 CEST | Update | - |
| article html file updated | 4 May 2019 17:53 CEST | Update | - |
| article html file updated | 7 February 2017 13:33 CET | Update | - |
| article html file updated | 27 December 2016 07:20 CET | Update | - |
| article xml uploaded. | 27 December 2016 07:18 CET | Update | https://www.mdpi.com/2072-6651/9/1/4/xml |
| article xml uploaded. | 27 December 2016 07:18 CET | Update | - |
| article pdf uploaded. | 27 December 2016 07:18 CET | Updated version of record | https://www.mdpi.com/2072-6651/9/1/4/pdf |
| article html file updated | 24 December 2016 09:46 CET | Original file | - |
| article xml uploaded. | 24 December 2016 09:44 CET | Update | - |
| article xml uploaded. | 24 December 2016 09:44 CET | Original file | - |
| article pdf uploaded. | 24 December 2016 09:44 CET | Version of Record | https://www.mdpi.com/2072-6651/9/1/4/pdf-vor |
