| article html file updated | 29 August 2025 20:49 CEST | Update | https://www.mdpi.com/2072-6694/5/4/1261 |
| article html file updated | 15 July 2022 22:37 CEST | Update | - |
| article html file updated | 6 February 2020 05:01 CET | Update | - |
| article html file updated | 7 May 2019 23:03 CEST | Update | - |
| article html file updated | 21 March 2019 06:18 CET | Update | - |
| article html file updated | 17 June 2015 14:06 CEST | Update | - |
| article html file updated | 6 January 2014 11:09 CET | Original file | - |
| article xml file uploaded | 6 January 2014 11:09 CET | Original file | https://www.mdpi.com/2072-6694/5/4/1261/xml |
| article pdf uploaded. | 21 October 2013 13:58 CEST | Version of Record | https://www.mdpi.com/2072-6694/5/4/1261/pdf |
