| article html file updated | 6 February 2020 08:39 CET | Update | https://www.mdpi.com/2072-6694/6/2/897 |
| article html file updated | 20 September 2019 07:29 CEST | Update | - |
| article html file updated | 7 May 2019 15:46 CEST | Update | - |
| article html file updated | 21 March 2019 15:40 CET | Update | - |
| article html file updated | 20 August 2015 03:31 CEST | Update | - |
| article html file updated | 30 June 2014 09:45 CEST | Original file | - |
| article xml file uploaded | 30 June 2014 09:45 CEST | Original file | https://www.mdpi.com/2072-6694/6/2/897/xml |
| article pdf uploaded. | 16 April 2014 14:44 CEST | Version of Record | https://www.mdpi.com/2072-6694/6/2/897/pdf |
