| article html file updated | 8 February 2020 15:38 CET | Update | https://www.mdpi.com/1424-8220/17/9/2060 |
| article html file updated | 27 September 2019 00:28 CEST | Update | - |
| article html file updated | 3 May 2019 03:00 CEST | Update | - |
| article html file updated | 30 September 2017 14:52 CEST | Update | - |
| article html file updated | 8 September 2017 09:39 CEST | Original file | - |
| article xml uploaded. | 8 September 2017 09:37 CEST | Update | https://www.mdpi.com/1424-8220/17/9/2060/xml |
| article xml uploaded. | 8 September 2017 09:37 CEST | Original file | - |
| article pdf uploaded. | 8 September 2017 09:37 CEST | Version of Record | https://www.mdpi.com/1424-8220/17/9/2060/pdf |
