| article html file updated | 6 February 2020 22:10 CET | Update | https://www.mdpi.com/2071-1050/7/9/11909 |
| article html file updated | 6 May 2019 12:39 CEST | Update | N/A |
| article html file updated | 26 March 2019 09:32 CET | Update | N/A |
| article html file updated | 12 October 2015 12:32 CEST | Original file | N/A |
| article xml file uploaded | 12 October 2015 12:32 CEST | Original file | https://www.mdpi.com/2071-1050/7/9/11909/xml |
| article pdf uploaded. | 27 August 2015 12:58 CEST | Version of Record | https://www.mdpi.com/2071-1050/7/9/11909/pdf |
