| article html file updated | 31 August 2025 23:30 CEST | Update | https://www.mdpi.com/2227-9040/8/2/38 |
| article html file updated | 21 July 2022 20:45 CEST | Update | N/A |
| article html file updated | 10 October 2020 03:49 CEST | Update | N/A |
| article html file updated | 9 October 2020 07:40 CEST | Update | N/A |
| article html file updated | 29 June 2020 09:20 CEST | Original file | N/A |
| article pdf uploaded. | 29 June 2020 09:18 CEST | Updated version of record | https://www.mdpi.com/2227-9040/8/2/38/pdf |
| article xml uploaded. | 29 June 2020 09:18 CEST | Update | https://www.mdpi.com/2227-9040/8/2/38/xml |
| article xml file uploaded | 29 June 2020 09:18 CEST | Original file | N/A |
| article pdf uploaded. | 12 June 2020 15:04 CEST | Updated version of record | https://www.mdpi.com/2227-9040/8/2/38/pdf-vor |
| article pdf uploaded. | 12 June 2020 15:04 CEST | Version of Record | https://www.mdpi.com/2227-9040/8/2/38/pdf-vor |
