| article html file updated | 31 August 2025 00:36 CEST | Update | https://www.mdpi.com/1660-3397/17/9/506 |
| article html file updated | 20 July 2022 04:27 CEST | Update | - |
| article html file updated | 13 February 2020 13:12 CET | Update | - |
| article html file updated | 26 September 2019 21:30 CEST | Update | - |
| article html file updated | 28 August 2019 12:17 CEST | Original file | - |
| article pdf uploaded. | 28 August 2019 12:16 CEST | Version of Record | https://www.mdpi.com/1660-3397/17/9/506/pdf |
| article xml uploaded. | 28 August 2019 12:16 CEST | Update | https://www.mdpi.com/1660-3397/17/9/506/xml |
| article xml file uploaded | 28 August 2019 12:16 CEST | Original file | - |
