| article html file updated | 24 March 2020 12:44 CET | Original file | https://www.mdpi.com/2504-4494/4/1/21 |
| article pdf uploaded. | 24 March 2020 12:43 CET | Updated version of record | https://www.mdpi.com/2504-4494/4/1/21/pdf |
| article xml uploaded. | 24 March 2020 12:43 CET | Update | https://www.mdpi.com/2504-4494/4/1/21/xml |
| article xml file uploaded | 24 March 2020 12:42 CET | Update | N/A |
| article pdf uploaded. | 5 March 2020 15:54 CET | Version of Record | https://www.mdpi.com/2504-4494/4/1/21/pdf-vor |
| article xml file uploaded | 5 March 2020 15:54 CET | Original file | N/A |
