| article html file updated | 6 February 2020 10:38 CET | Update | https://www.mdpi.com/2073-8994/6/3/578 |
| article html file updated | 9 January 2020 06:06 CET | Update | - |
| article html file updated | 20 September 2019 10:23 CEST | Update | - |
| article html file updated | 7 May 2019 11:46 CEST | Update | - |
| article html file updated | 21 March 2019 20:38 CET | Update | - |
| article html file updated | 20 August 2015 12:29 CEST | Update | - |
| article html file updated | 21 October 2014 03:42 CEST | Update | - |
| article xml file uploaded | 21 October 2014 03:42 CEST | Update | https://www.mdpi.com/2073-8994/6/3/578/xml |
| article html file updated | 21 October 2014 03:06 CEST | Original file | - |
| article xml file uploaded | 21 October 2014 03:06 CEST | Original file | - |
| article pdf uploaded. | 11 July 2014 10:31 CEST | Version of Record | https://www.mdpi.com/2073-8994/6/3/578/pdf |
