| article html file updated | 31 August 2025 21:40 CEST | Update | https://www.mdpi.com/2227-7072/8/2/31 |
| article html file updated | 21 July 2022 06:04 CEST | Update | - |
| article html file updated | 7 July 2020 10:24 CEST | Update | - |
| article html file updated | 20 June 2020 10:01 CEST | Original file | - |
| article pdf uploaded. | 20 June 2020 10:00 CEST | Updated version of record | https://www.mdpi.com/2227-7072/8/2/31/pdf |
| article xml uploaded. | 20 June 2020 10:00 CEST | Update | https://www.mdpi.com/2227-7072/8/2/31/xml |
| article xml file uploaded | 20 June 2020 10:00 CEST | Update | - |
| article pdf uploaded. | 26 May 2020 15:36 CEST | Version of Record | https://www.mdpi.com/2227-7072/8/2/31/pdf-vor |
| article xml file uploaded | 26 May 2020 15:36 CEST | Original file | - |
