| article html file updated | 8 February 2020 15:32 CET | Update | https://www.mdpi.com/1424-8220/17/9/2044 |
| article html file updated | 26 September 2019 23:56 CEST | Update | - |
| article html file updated | 3 May 2019 03:11 CEST | Update | - |
| article html file updated | 30 September 2017 14:49 CEST | Update | - |
| article html file updated | 7 September 2017 08:28 CEST | Original file | - |
| article xml uploaded. | 7 September 2017 08:27 CEST | Original file | https://www.mdpi.com/1424-8220/17/9/2044/xml |
| article pdf uploaded. | 7 September 2017 08:27 CEST | Version of Record | https://www.mdpi.com/1424-8220/17/9/2044/pdf |
