| article html file updated | 6 February 2020 10:23 CET | Update | https://www.mdpi.com/2072-6643/6/7/2509 |
| article html file updated | 7 May 2019 12:15 CEST | Update | - |
| article html file updated | 21 March 2019 20:00 CET | Update | - |
| article html file updated | 20 August 2015 11:32 CEST | Update | - |
| article html file updated | 29 July 2014 11:36 CEST | Update | - |
| article xml file uploaded | 29 July 2014 11:36 CEST | Update | https://www.mdpi.com/2072-6643/6/7/2509/xml |
| article html file updated | 29 July 2014 06:04 CEST | Original file | - |
| article xml file uploaded | 29 July 2014 06:04 CEST | Original file | - |
| article pdf uploaded. | 1 July 2014 15:49 CEST | Version of Record | https://www.mdpi.com/2072-6643/6/7/2509/pdf |
