| article html file updated | 31 August 2025 21:27 CEST | Update | https://www.mdpi.com/2227-7080/8/2/30 |
| article html file updated | 21 July 2022 05:52 CEST | Update | - |
| article html file updated | 13 June 2020 05:29 CEST | Update | - |
| article pdf uploaded. | 13 June 2020 05:27 CEST | Updated version of record | https://www.mdpi.com/2227-7080/8/2/30/pdf |
| article xml uploaded. | 13 June 2020 05:27 CEST | Update | https://www.mdpi.com/2227-7080/8/2/30/xml |
| article xml file uploaded | 13 June 2020 05:27 CEST | Update | - |
| article html file updated | 11 June 2020 13:13 CEST | Original file | - |
| article pdf uploaded. | 11 June 2020 13:11 CEST | Updated version of record | https://www.mdpi.com/2227-7080/8/2/30/pdf-vor |
| article xml file uploaded | 11 June 2020 13:11 CEST | Update | - |
| article pdf uploaded. | 24 May 2020 16:53 CEST | Version of Record | https://www.mdpi.com/2227-7080/8/2/30/pdf-vor |
| article xml file uploaded | 24 May 2020 16:53 CEST | Original file | - |
