| article html file updated | 15 February 2020 08:31 CET | Update | https://www.mdpi.com/2504-186X/5/1/4 |
| article html file updated | 7 February 2020 16:38 CET | Original file | - |
| article pdf uploaded. | 7 February 2020 11:03 CET | Version of Record | https://www.mdpi.com/2504-186X/5/1/4/pdf |
| article xml uploaded. | 7 February 2020 11:03 CET | Update | https://www.mdpi.com/2504-186X/5/1/4/xml |
| article xml file uploaded | 7 February 2020 11:03 CET | Original file | - |
