| article html file updated | 6 February 2020 22:27 CET | Update | https://www.mdpi.com/2071-1050/7/9/12236 |
| article html file updated | 6 May 2019 12:03 CEST | Update | - |
| article html file updated | 26 March 2019 10:04 CET | Update | - |
| article html file updated | 12 October 2015 12:32 CEST | Update | - |
| article xml file uploaded | 12 October 2015 12:32 CEST | Update | https://www.mdpi.com/2071-1050/7/9/12236/xml |
| article html file updated | 21 September 2015 09:57 CEST | Original file | - |
| article xml file uploaded | 21 September 2015 09:57 CEST | Original file | - |
| article pdf uploaded. | 3 September 2015 12:53 CEST | Version of Record | https://www.mdpi.com/2071-1050/7/9/12236/pdf |
