| article html file updated | 6 February 2020 12:24 CET | Update | https://www.mdpi.com/2072-6651/6/9/2857 |
| article html file updated | 7 May 2019 07:57 CEST | Update | - |
| article html file updated | 22 March 2019 01:22 CET | Update | - |
| article html file updated | 20 August 2015 20:28 CEST | Update | - |
| article html file updated | 30 September 2014 10:19 CEST | Original file | - |
| article xml file uploaded | 30 September 2014 10:19 CEST | Original file | https://www.mdpi.com/2072-6651/6/9/2857/xml |
| article pdf uploaded. | 23 September 2014 09:52 CEST | Version of Record | https://www.mdpi.com/2072-6651/6/9/2857/pdf |
