| article html file updated | 6 February 2020 05:58 CET | Update | https://www.mdpi.com/2072-6694/5/4/1676 |
| article html file updated | 7 May 2019 21:17 CEST | Update | - |
| article html file updated | 21 March 2019 08:47 CET | Update | - |
| article html file updated | 19 August 2015 12:22 CEST | Update | - |
| article html file updated | 6 January 2014 11:10 CET | Original file | - |
| article xml file uploaded | 6 January 2014 11:10 CET | Original file | https://www.mdpi.com/2072-6694/5/4/1676/xml |
| article pdf uploaded. | 9 December 2013 14:28 CET | Updated version of record | https://www.mdpi.com/2072-6694/5/4/1676/pdf |
| article pdf uploaded. | 4 December 2013 13:46 CET | Version of Record | https://www.mdpi.com/2072-6694/5/4/1676/pdf-vor |
