| article html file updated | 31 August 2025 22:06 CEST | Update | https://www.mdpi.com/2223-7747/9/6/697 |
| article html file updated | 21 July 2022 06:30 CEST | Update | N/A |
| article html file updated | 10 June 2020 12:20 CEST | Update | N/A |
| article pdf uploaded. | 10 June 2020 12:19 CEST | Updated version of record | https://www.mdpi.com/2223-7747/9/6/697/pdf |
| article xml uploaded. | 10 June 2020 12:19 CEST | Update | https://www.mdpi.com/2223-7747/9/6/697/xml |
| article xml file uploaded | 10 June 2020 12:19 CEST | Update | N/A |
| article html file updated | 30 May 2020 13:00 CEST | Original file | N/A |
| article pdf uploaded. | 30 May 2020 12:59 CEST | Version of Record | https://www.mdpi.com/2223-7747/9/6/697/pdf-vor |
| article xml file uploaded | 30 May 2020 12:59 CEST | Original file | N/A |
