| article html file updated | 12 February 2020 08:13 CET | Update | https://www.mdpi.com/1424-8220/19/9/1974 |
| article html file updated | 19 October 2019 03:02 CEST | Update | N/A |
| article html file updated | 24 May 2019 14:33 CEST | Update | N/A |
| article html file updated | 27 April 2019 09:40 CEST | Original file | N/A |
| article pdf uploaded. | 27 April 2019 09:38 CEST | Version of Record | https://www.mdpi.com/1424-8220/19/9/1974/pdf |
| article xml uploaded. | 27 April 2019 09:38 CEST | Update | https://www.mdpi.com/1424-8220/19/9/1974/xml |
| article xml file uploaded | 27 April 2019 09:38 CEST | Original file | N/A |
