| article html file updated | 12 February 2020 08:08 CET | Update | https://www.mdpi.com/1424-8220/19/9/1971 |
| article html file updated | 19 October 2019 02:26 CEST | Update | - |
| article html file updated | 24 May 2019 14:27 CEST | Update | - |
| article html file updated | 28 April 2019 12:19 CEST | Original file | - |
| article pdf uploaded. | 28 April 2019 12:18 CEST | Updated version of record | https://www.mdpi.com/1424-8220/19/9/1971/pdf |
| article xml uploaded. | 28 April 2019 12:18 CEST | Update | https://www.mdpi.com/1424-8220/19/9/1971/xml |
| article xml file uploaded | 28 April 2019 12:18 CEST | Update | - |
| article pdf uploaded. | 26 April 2019 15:27 CEST | Version of Record | https://www.mdpi.com/1424-8220/19/9/1971/pdf-vor |
| article xml file uploaded | 26 April 2019 15:27 CEST | Original file | - |
