| article html file updated | 31 August 2025 17:03 CEST | Update | https://www.mdpi.com/2227-7390/8/4/556 |
| article html file updated | 21 July 2022 01:32 CEST | Update | N/A |
| article html file updated | 8 October 2020 20:58 CEST | Update | N/A |
| article html file updated | 23 April 2020 05:34 CEST | Original file | N/A |
| article pdf uploaded. | 23 April 2020 05:33 CEST | Updated version of record | https://www.mdpi.com/2227-7390/8/4/556/pdf |
| article xml uploaded. | 23 April 2020 05:33 CEST | Update | https://www.mdpi.com/2227-7390/8/4/556/xml |
| article xml file uploaded | 23 April 2020 05:33 CEST | Update | N/A |
| article pdf uploaded. | 10 April 2020 13:51 CEST | Version of Record | https://www.mdpi.com/2227-7390/8/4/556/pdf-vor |
| article xml file uploaded | 10 April 2020 13:51 CEST | Original file | N/A |
