| article html file updated | 12 February 2020 08:40 CET | Update | https://www.mdpi.com/1424-8220/19/9/2009 |
| article html file updated | 19 October 2019 05:41 CEST | Update | N/A |
| article html file updated | 24 May 2019 15:10 CEST | Update | N/A |
| article html file updated | 30 April 2019 11:12 CEST | Original file | N/A |
| article pdf uploaded. | 30 April 2019 11:11 CEST | Updated version of record | https://www.mdpi.com/1424-8220/19/9/2009/pdf |
| article xml uploaded. | 30 April 2019 11:11 CEST | Update | https://www.mdpi.com/1424-8220/19/9/2009/xml |
| article xml file uploaded | 30 April 2019 11:11 CEST | Update | N/A |
| article pdf uploaded. | 29 April 2019 11:01 CEST | Version of Record | https://www.mdpi.com/1424-8220/19/9/2009/pdf-vor |
| article xml file uploaded | 29 April 2019 11:01 CEST | Original file | N/A |
