| article html file updated | 31 August 2025 08:13 CEST | Update | https://www.mdpi.com/2227-9091/8/1/4 |
| article html file updated | 19 July 2022 20:06 CEST | Update | - |
| article html file updated | 1 April 2020 21:08 CEST | Update | - |
| article html file updated | 15 February 2020 00:13 CET | Update | - |
| article html file updated | 9 January 2020 08:13 CET | Original file | - |
| article pdf uploaded. | 9 January 2020 08:11 CET | Updated version of record | https://www.mdpi.com/2227-9091/8/1/4/pdf |
| article xml uploaded. | 9 January 2020 08:11 CET | Update | https://www.mdpi.com/2227-9091/8/1/4/xml |
| article xml file uploaded | 9 January 2020 08:11 CET | Update | - |
| article pdf uploaded. | 4 January 2020 12:06 CET | Version of Record | https://www.mdpi.com/2227-9091/8/1/4/pdf-vor |
| article xml file uploaded | 4 January 2020 12:06 CET | Original file | - |
