| article html file updated | 2 April 2020 12:47 CEST | Original file | https://www.mdpi.com/2076-0752/9/2/43 |
| article pdf uploaded. | 1 April 2020 13:54 CEST | Updated version of record | https://www.mdpi.com/2076-0752/9/2/43/pdf |
| article xml uploaded. | 1 April 2020 13:54 CEST | Update | https://www.mdpi.com/2076-0752/9/2/43/xml |
| article xml file uploaded | 1 April 2020 13:54 CEST | Update | - |
| article pdf uploaded. | 27 March 2020 12:13 CET | Version of Record | https://www.mdpi.com/2076-0752/9/2/43/pdf-vor |
| article xml file uploaded | 27 March 2020 12:13 CET | Original file | - |
