| article html file updated | 31 August 2025 21:31 CEST | Update | https://www.mdpi.com/2227-7080/8/2/31 |
| article html file updated | 21 July 2022 05:55 CEST | Update | - |
| article html file updated | 23 June 2020 11:09 CEST | Update | - |
| article pdf uploaded. | 23 June 2020 11:08 CEST | Updated version of record | https://www.mdpi.com/2227-7080/8/2/31/pdf |
| article xml uploaded. | 23 June 2020 11:08 CEST | Update | https://www.mdpi.com/2227-7080/8/2/31/xml |
| article xml file uploaded | 23 June 2020 11:08 CEST | Update | - |
| article html file updated | 11 June 2020 06:05 CEST | Original file | - |
| article pdf uploaded. | 11 June 2020 06:04 CEST | Updated version of record | https://www.mdpi.com/2227-7080/8/2/31/pdf-vor |
| article xml file uploaded | 11 June 2020 06:04 CEST | Update | - |
| article pdf uploaded. | 25 May 2020 13:04 CEST | Version of Record | https://www.mdpi.com/2227-7080/8/2/31/pdf-vor |
| article xml file uploaded | 25 May 2020 13:04 CEST | Original file | - |
