| article html file updated | 30 August 2025 14:29 CEST | Update | https://www.mdpi.com/1424-8220/19/9/1997 |
| article html file updated | 19 July 2022 18:02 CEST | Update | - |
| article html file updated | 12 February 2020 08:33 CET | Update | - |
| article html file updated | 24 May 2019 14:58 CEST | Update | - |
| article html file updated | 29 April 2019 04:51 CEST | Original file | - |
| article pdf uploaded. | 29 April 2019 04:50 CEST | Version of Record | https://www.mdpi.com/1424-8220/19/9/1997/pdf |
| article xml uploaded. | 29 April 2019 04:50 CEST | Update | https://www.mdpi.com/1424-8220/19/9/1997/xml |
| article xml file uploaded | 29 April 2019 04:50 CEST | Original file | - |
