| article html file updated | 31 August 2025 21:58 CEST | Update | https://www.mdpi.com/2227-9059/8/6/138 |
| article html file updated | 21 July 2022 06:22 CEST | Update | N/A |
| article html file updated | 10 June 2020 10:44 CEST | Original file | N/A |
| article pdf uploaded. | 10 June 2020 10:42 CEST | Updated version of record | https://www.mdpi.com/2227-9059/8/6/138/pdf |
| article xml uploaded. | 10 June 2020 10:42 CEST | Update | https://www.mdpi.com/2227-9059/8/6/138/xml |
| article xml file uploaded | 10 June 2020 10:42 CEST | Original file | N/A |
| article pdf uploaded. | 29 May 2020 12:21 CEST | Version of Record | https://www.mdpi.com/2227-9059/8/6/138/pdf-vor |
