| article html file updated | 6 February 2020 10:17 CET | Update | https://www.mdpi.com/2072-4292/6/7/6020 |
| article html file updated | 7 May 2019 12:27 CEST | Update | - |
| article html file updated | 21 March 2019 19:45 CET | Update | - |
| article html file updated | 20 August 2015 11:06 CEST | Update | - |
| article html file updated | 13 August 2014 12:15 CEST | Original file | - |
| article xml file uploaded | 13 August 2014 12:14 CEST | Original file | https://www.mdpi.com/2072-4292/6/7/6020/xml |
| article pdf uploaded. | 27 June 2014 09:03 CEST | Version of Record | https://www.mdpi.com/2072-4292/6/7/6020/pdf |
