| article html file updated | 30 August 2025 01:20 CEST | Update | https://www.mdpi.com/1424-2818/9/4/43 |
| article html file updated | 16 July 2022 06:38 CEST | Update | - |
| article html file updated | 8 February 2020 17:39 CET | Update | - |
| article html file updated | 27 September 2019 12:13 CEST | Update | - |
| article html file updated | 2 May 2019 23:02 CEST | Update | - |
| article html file updated | 2 January 2018 16:58 CET | Update | - |
| article html file updated | 20 October 2017 09:05 CEST | Update | - |
| article xml uploaded. | 20 October 2017 09:04 CEST | Update | https://www.mdpi.com/1424-2818/9/4/43/xml |
| article pdf uploaded. | 20 October 2017 09:04 CEST | Updated version of record | https://www.mdpi.com/1424-2818/9/4/43/pdf |
| article html file updated | 1 October 2017 11:40 CEST | Original file | - |
| article xml uploaded. | 1 October 2017 11:39 CEST | Update | - |
| article xml uploaded. | 1 October 2017 11:39 CEST | Original file | - |
| article pdf uploaded. | 1 October 2017 11:39 CEST | Version of Record | https://www.mdpi.com/1424-2818/9/4/43/pdf-vor |