| article html file updated | 7 February 2020 12:00 CET | Update | https://www.mdpi.com/2071-1050/8/7/697 |
| article html file updated | 5 May 2019 09:36 CEST | Update | - |
| article html file updated | 27 March 2019 10:52 CET | Update | - |
| article html file updated | 29 July 2016 13:00 CEST | Update | - |
| article html file updated | 20 July 2016 13:01 CEST | Original file | - |
| article xml uploaded. | 20 July 2016 13:00 CEST | Original file | https://www.mdpi.com/2071-1050/8/7/697/xml |
| article pdf uploaded. | 20 July 2016 13:00 CEST | Version of Record | https://www.mdpi.com/2071-1050/8/7/697/pdf |
