| article html file updated | 6 February 2020 02:51 CET | Update | https://www.mdpi.com/2072-6643/5/7/2268 |
| article html file updated | 8 May 2019 03:35 CEST | Update | - |
| article html file updated | 21 March 2019 00:22 CET | Update | - |
| article html file updated | 17 June 2015 10:37 CEST | Update | - |
| article html file updated | 9 August 2013 11:57 CEST | Original file | - |
| article xml file uploaded | 9 August 2013 11:57 CEST | Original file | https://www.mdpi.com/2072-6643/5/7/2268/xml |
| article pdf uploaded. | 26 June 2013 13:50 CEST | Version of Record | https://www.mdpi.com/2072-6643/5/7/2268/pdf |
