| article html file updated | 16 August 2026 21:51 CEST | Update | https://www.mdpi.com/2227-7390/8/1/21 |
| article html file updated | 24 December 2025 16:49 CET | Update | N/A |
| article html file updated | 31 August 2025 07:07 CEST | Update | N/A |
| article html file updated | 19 July 2022 21:09 CEST | Update | N/A |
| article html file updated | 14 February 2020 20:35 CET | Update | N/A |
| article html file updated | 5 February 2020 21:35 CET | Update | N/A |
| article html file updated | 30 December 2019 03:46 CET | Original file | N/A |
| article pdf uploaded. | 30 December 2019 03:45 CET | Updated version of record | https://www.mdpi.com/2227-7390/8/1/21/pdf |
| article xml uploaded. | 30 December 2019 03:45 CET | Update | https://www.mdpi.com/2227-7390/8/1/21/xml |
| article xml file uploaded | 30 December 2019 03:45 CET | Update | N/A |
| article pdf uploaded. | 20 December 2019 14:58 CET | Version of Record | https://www.mdpi.com/2227-7390/8/1/21/pdf-vor |
| article xml file uploaded | 20 December 2019 14:58 CET | Original file | N/A |
