| article html file updated | 8 May 2020 17:58 CEST | Update | https://www.mdpi.com/2227-9717/8/4/394 |
| article html file updated | 27 March 2020 16:05 CET | Original file | - |
| article pdf uploaded. | 27 March 2020 16:04 CET | Version of Record | https://www.mdpi.com/2227-9717/8/4/394/pdf |
| article xml uploaded. | 27 March 2020 16:04 CET | Update | https://www.mdpi.com/2227-9717/8/4/394/xml |
| article xml file uploaded | 27 March 2020 16:04 CET | Original file | - |
