| article html file updated | 29 August 2025 21:24 CEST | Update | https://www.mdpi.com/2218-273X/4/4/1102 |
| article html file updated | 20 August 2025 21:56 CEST | Update | - |
| article html file updated | 15 July 2022 23:40 CEST | Update | - |
| article html file updated | 6 February 2020 14:31 CET | Update | - |
| article html file updated | 7 May 2019 03:51 CEST | Update | - |
| article html file updated | 25 March 2019 19:23 CET | Update | - |
| article html file updated | 14 March 2018 13:31 CET | Update | - |
| article html file updated | 21 August 2015 04:18 CEST | Update | - |
| article html file updated | 30 December 2014 09:31 CET | Original file | - |
| article xml file uploaded | 30 December 2014 09:31 CET | Original file | https://www.mdpi.com/2218-273X/4/4/1102/xml |
| article pdf uploaded. | 16 December 2014 16:07 CET | Version of Record | https://www.mdpi.com/2218-273X/4/4/1102/pdf |