| article html file updated | 6 February 2020 05:17 CET | Update | https://www.mdpi.com/2072-6694/5/4/1355 |
| article html file updated | 7 May 2019 22:37 CEST | Update | - |
| article html file updated | 21 March 2019 06:58 CET | 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/2072-6694/5/4/1355/xml |
| article pdf uploaded. | 31 October 2013 14:17 CET | Version of Record | https://www.mdpi.com/2072-6694/5/4/1355/pdf |
