| article html file updated | 8 February 2020 08:10 CET | Update | https://www.mdpi.com/2072-6651/9/6/191 |
| article html file updated | 25 September 2019 07:44 CEST | Update | - |
| article html file updated | 3 May 2019 17:41 CEST | Update | - |
| article html file updated | 28 June 2017 14:58 CEST | Update | - |
| article html file updated | 13 June 2017 14:01 CEST | Original file | - |
| article xml uploaded. | 13 June 2017 14:00 CEST | Update | https://www.mdpi.com/2072-6651/9/6/191/xml |
| article pdf uploaded. | 13 June 2017 14:00 CEST | Version of Record | https://www.mdpi.com/2072-6651/9/6/191/pdf |
