| article html file updated | 8 February 2020 15:20 CET | Update | https://www.mdpi.com/1424-8220/17/9/2031 |
| article html file updated | 26 September 2019 22:51 CEST | Update | - |
| article html file updated | 3 May 2019 03:34 CEST | Update | - |
| article html file updated | 30 September 2017 14:47 CEST | Update | - |
| article html file updated | 5 September 2017 10:53 CEST | Original file | - |
| article xml uploaded. | 5 September 2017 10:51 CEST | Update | https://www.mdpi.com/1424-8220/17/9/2031/xml |
| article xml uploaded. | 5 September 2017 10:51 CEST | Original file | - |
| article pdf uploaded. | 5 September 2017 10:51 CEST | Version of Record | https://www.mdpi.com/1424-8220/17/9/2031/pdf |
