| article html file updated | 8 February 2020 08:45 CET | Update | https://www.mdpi.com/2071-1050/9/6/1072 |
| article html file updated | 3 May 2019 16:34 CEST | Update | - |
| article html file updated | 28 June 2017 14:53 CEST | Update | - |
| article html file updated | 21 June 2017 11:12 CEST | Original file | - |
| article xml uploaded. | 21 June 2017 11:11 CEST | Original file | https://www.mdpi.com/2071-1050/9/6/1072/xml |
| article pdf uploaded. | 21 June 2017 11:11 CEST | Updated version of record | https://www.mdpi.com/2071-1050/9/6/1072/pdf |
| article pdf uploaded. | 20 June 2017 13:13 CEST | Version of Record | https://www.mdpi.com/2071-1050/9/6/1072/pdf-vor |
