| article html file updated | 22 April 2020 10:55 CEST | Original file | https://www.mdpi.com/2076-0752/9/2/46 |
| article pdf uploaded. | 22 April 2020 10:54 CEST | Updated version of record | https://www.mdpi.com/2076-0752/9/2/46/pdf |
| article xml uploaded. | 22 April 2020 10:54 CEST | Update | https://www.mdpi.com/2076-0752/9/2/46/xml |
| article xml file uploaded | 22 April 2020 10:54 CEST | Update | - |
| article pdf uploaded. | 1 April 2020 12:12 CEST | Version of Record | https://www.mdpi.com/2076-0752/9/2/46/pdf-vor |
| article xml file uploaded | 1 April 2020 12:12 CEST | Original file | - |
