| article html file updated | 12 February 2020 09:05 CET | Update | https://www.mdpi.com/2071-1050/11/9/2521 |
| article html file updated | 19 October 2019 08:10 CEST | Update | - |
| article html file updated | 24 May 2019 17:44 CEST | Update | - |
| article html file updated | 6 May 2019 12:46 CEST | Original file | - |
| article pdf uploaded. | 6 May 2019 12:44 CEST | Updated version of record | https://www.mdpi.com/2071-1050/11/9/2521/pdf |
| article xml uploaded. | 6 May 2019 12:44 CEST | Update | https://www.mdpi.com/2071-1050/11/9/2521/xml |
| article xml file uploaded | 6 May 2019 12:44 CEST | Update | - |
| article pdf uploaded. | 30 April 2019 16:39 CEST | Version of Record | https://www.mdpi.com/2071-1050/11/9/2521/pdf-vor |
| article xml file uploaded | 30 April 2019 16:39 CEST | Original file | - |
