| article html file updated | 6 February 2020 12:41 CET | Update | https://www.mdpi.com/2071-1050/6/10/6973 |
| article html file updated | 7 May 2019 07:26 CEST | Update | N/A |
| article html file updated | 22 March 2019 02:08 CET | Update | N/A |
| article html file updated | 20 August 2015 22:17 CEST | Update | N/A |
| article html file updated | 20 October 2014 11:41 CEST | Update | N/A |
| article xml file uploaded | 20 October 2014 11:41 CEST | Update | https://www.mdpi.com/2071-1050/6/10/6973/xml |
| article html file updated | 14 October 2014 12:07 CEST | Original file | N/A |
| article xml file uploaded | 14 October 2014 12:07 CEST | Original file | N/A |
| article pdf uploaded. | 6 October 2014 11:53 CEST | Version of Record | https://www.mdpi.com/2071-1050/6/10/6973/pdf |
