| article html file updated | 12 February 2020 08:34 CET | Update | https://www.mdpi.com/1424-8220/19/9/1998 |
| article html file updated | 19 October 2019 05:05 CEST | Update | - |
| article html file updated | 24 May 2019 14:59 CEST | Update | - |
| article html file updated | 29 April 2019 06:07 CEST | Original file | - |
| article pdf uploaded. | 29 April 2019 06:06 CEST | Version of Record | https://www.mdpi.com/1424-8220/19/9/1998/pdf |
| article xml uploaded. | 29 April 2019 06:06 CEST | Update | https://www.mdpi.com/1424-8220/19/9/1998/xml |
| article xml file uploaded | 29 April 2019 06:06 CEST | Original file | - |
