| article html file updated | 26 April 2020 15:09 CEST | Original file | https://www.mdpi.com/2220-9964/9/4/249 |
| article pdf uploaded. | 26 April 2020 15:07 CEST | Updated version of record | https://www.mdpi.com/2220-9964/9/4/249/pdf |
| article xml uploaded. | 26 April 2020 15:07 CEST | Update | https://www.mdpi.com/2220-9964/9/4/249/xml |
| article xml file uploaded | 26 April 2020 15:07 CEST | Update | - |
| article pdf uploaded. | 17 April 2020 14:54 CEST | Version of Record | https://www.mdpi.com/2220-9964/9/4/249/pdf-vor |
| article xml file uploaded | 17 April 2020 14:54 CEST | Original file | - |
