| article html file updated | 5 June 2020 11:59 CEST | Update | https://new.mdpi.com/2227-9717/8/5/520 |
| article html file updated | 28 April 2020 10:19 CEST | Original file | - |
| article pdf uploaded. | 28 April 2020 10:17 CEST | Version of Record | https://new.mdpi.com/2227-9717/8/5/520/pdf |
| article xml uploaded. | 28 April 2020 10:17 CEST | Update | https://new.mdpi.com/2227-9717/8/5/520/xml |
| article xml file uploaded | 28 April 2020 10:17 CEST | Original file | - |
