| article html file updated | 7 February 2020 13:59 CET | Update | https://www.mdpi.com/2071-1050/8/9/844 |
| article html file updated | 5 May 2019 05:56 CEST | Update | - |
| article html file updated | 27 March 2019 14:59 CET | Update | - |
| article html file updated | 27 September 2016 05:06 CEST | Update | - |
| article html file updated | 26 August 2016 13:40 CEST | Original file | - |
| article xml uploaded. | 26 August 2016 13:39 CEST | Update | https://www.mdpi.com/2071-1050/8/9/844/xml |
| article xml uploaded. | 26 August 2016 13:39 CEST | Original file | - |
| article pdf uploaded. | 26 August 2016 13:39 CEST | Version of Record | https://www.mdpi.com/2071-1050/8/9/844/pdf |
