| article html file updated | 8 February 2020 07:24 CET | Update | https://www.mdpi.com/2071-1050/9/6/944 |
| article html file updated | 25 September 2019 03:48 CEST | Update | - |
| article html file updated | 3 May 2019 19:07 CEST | Update | - |
| article html file updated | 28 June 2017 14:39 CEST | Update | - |
| article html file updated | 5 June 2017 13:19 CEST | Original file | - |
| article xml uploaded. | 5 June 2017 13:18 CEST | Original file | https://www.mdpi.com/2071-1050/9/6/944/xml |
| article pdf uploaded. | 5 June 2017 13:18 CEST | Updated version of record | https://www.mdpi.com/2071-1050/9/6/944/pdf |
| article pdf uploaded. | 3 June 2017 12:24 CEST | Version of Record | https://www.mdpi.com/2071-1050/9/6/944/pdf-vor |
