| article html file updated | 8 February 2020 09:51 CET | Update | https://www.mdpi.com/2072-6651/9/7/209 |
| article html file updated | 25 September 2019 16:53 CEST | Update | - |
| article html file updated | 3 May 2019 14:30 CEST | Update | - |
| article html file updated | 31 July 2017 10:02 CEST | Update | - |
| article html file updated | 1 July 2017 13:04 CEST | Original file | - |
| article xml uploaded. | 1 July 2017 13:03 CEST | Original file | https://www.mdpi.com/2072-6651/9/7/209/xml |
| article pdf uploaded. | 1 July 2017 13:03 CEST | Version of Record | https://www.mdpi.com/2072-6651/9/7/209/pdf |
