| article html file updated | 29 August 2025 20:50 CEST | Update | https://www.mdpi.com/2218-273X/3/4/943 |
| article html file updated | 20 August 2025 21:53 CEST | Update | - |
| article html file updated | 15 July 2022 22:40 CEST | Update | - |
| article html file updated | 6 February 2020 05:28 CET | Update | - |
| article html file updated | 7 May 2019 22:17 CEST | Update | - |
| article html file updated | 21 March 2019 07:26 CET | Update | - |
| article html file updated | 14 March 2018 17:59 CET | Update | - |
| article html file updated | 19 August 2015 09:21 CEST | Update | - |
| article html file updated | 28 April 2014 10:36 CEST | Original file | - |
| article xml file uploaded | 28 April 2014 10:36 CEST | Original file | https://www.mdpi.com/2218-273X/3/4/943/xml |
| article pdf uploaded. | 11 November 2013 14:33 CET | Version of Record | https://www.mdpi.com/2218-273X/3/4/943/pdf |