| article html file updated | 15 February 2020 04:17 CET | Update | https://www.mdpi.com/2227-7080/8/1/7 |
| article html file updated | 5 February 2020 10:08 CET | Original file | - |
| article pdf uploaded. | 5 February 2020 10:03 CET | Updated version of record | https://www.mdpi.com/2227-7080/8/1/7/pdf |
| article xml uploaded. | 5 February 2020 10:03 CET | Update | https://www.mdpi.com/2227-7080/8/1/7/xml |
| article xml file uploaded | 5 February 2020 10:03 CET | Update | - |
| article pdf uploaded. | 19 January 2020 09:07 CET | Version of Record | https://www.mdpi.com/2227-7080/8/1/7/pdf-vor |
| article xml file uploaded | 19 January 2020 09:07 CET | Original file | - |
