| article html file updated | 31 August 2025 19:19 CEST | Update | https://www.mdpi.com/2227-7072/8/2/28 |
| article html file updated | 21 July 2022 03:45 CEST | Update | N/A |
| article html file updated | 8 October 2020 23:28 CEST | Update | N/A |
| article html file updated | 8 May 2020 14:27 CEST | Original file | N/A |
| article pdf uploaded. | 8 May 2020 14:03 CEST | Updated version of record | https://www.mdpi.com/2227-7072/8/2/28/pdf |
| article xml uploaded. | 8 May 2020 14:03 CEST | Update | https://www.mdpi.com/2227-7072/8/2/28/xml |
| article xml file uploaded | 8 May 2020 14:03 CEST | Update | N/A |
| article pdf uploaded. | 2 May 2020 14:27 CEST | Updated version of record | https://www.mdpi.com/2227-7072/8/2/28/pdf-vor |
| article xml file uploaded | 2 May 2020 14:27 CEST | Update | N/A |
| article pdf uploaded. | 2 May 2020 14:26 CEST | Version of Record | https://www.mdpi.com/2227-7072/8/2/28/pdf-vor |
| article xml file uploaded | 2 May 2020 14:26 CEST | Original file | N/A |
