| article html file updated | 30 August 2025 00:06 CEST | Update | https://www.mdpi.com/2227-9067/3/4/43 |
| article html file updated | 16 July 2022 04:14 CEST | Update | - |
| article html file updated | 7 February 2020 20:02 CET | Update | - |
| article html file updated | 22 September 2019 13:44 CEST | Update | - |
| article html file updated | 4 May 2019 18:22 CEST | Update | - |
| article html file updated | 27 December 2016 02:27 CET | Update | - |
| article html file updated | 21 December 2016 10:23 CET | Update | - |
| article xml uploaded. | 21 December 2016 10:22 CET | Update | https://www.mdpi.com/2227-9067/3/4/43/xml |
| article pdf uploaded. | 21 December 2016 10:22 CET | Updated version of record | https://www.mdpi.com/2227-9067/3/4/43/pdf |
| article html file updated | 21 December 2016 10:20 CET | Original file | - |
| article xml uploaded. | 21 December 2016 10:19 CET | Original file | - |
| article pdf uploaded. | 21 December 2016 10:19 CET | Version of Record | - |
