| article html file updated | 6 February 2020 04:16 CET | Update | https://www.mdpi.com/2072-6651/5/9/1531 |
| article html file updated | 8 May 2019 00:42 CEST | Update | - |
| article html file updated | 21 March 2019 04:17 CET | Update | - |
| article html file updated | 17 June 2015 13:02 CEST | Update | - |
| article html file updated | 25 October 2013 10:48 CEST | Original file | - |
| article xml file uploaded | 25 October 2013 10:47 CEST | Original file | https://www.mdpi.com/2072-6651/5/9/1531/xml |
| article pdf uploaded. | 10 September 2013 14:31 CEST | Updated version of record | https://www.mdpi.com/2072-6651/5/9/1531/pdf |
| article pdf uploaded. | 9 September 2013 12:31 CEST | Version of Record | https://www.mdpi.com/2072-6651/5/9/1531/pdf-vor |
