| article html file updated | 19 August 2026 05:34 CEST | Update | https://www.mdpi.com/2227-9717/9/4/606 |
| article html file updated | 3 August 2021 17:29 CEST | Update | N/A |
| article html file updated | 10 April 2021 13:50 CEST | Update | N/A |
| article html file updated | 31 March 2021 09:12 CEST | Original file | N/A |
| article pdf uploaded. | 31 March 2021 09:10 CEST | Updated version of record | https://www.mdpi.com/2227-9717/9/4/606/pdf |
| article xml uploaded. | 31 March 2021 09:10 CEST | Update | https://www.mdpi.com/2227-9717/9/4/606/xml |
| article xml file uploaded | 31 March 2021 09:10 CEST | Original file | N/A |
| article pdf uploaded. | 30 March 2021 16:19 CEST | Version of Record | https://www.mdpi.com/2227-9717/9/4/606/pdf-vor |
