| article html file updated | 1 April 2020 22:07 CEST | Update | https://www.mdpi.com/2227-7099/8/1/7 |
| article html file updated | 15 February 2020 04:41 CET | Update | - |
| article html file updated | 23 January 2020 13:19 CET | Update | - |
| article pdf uploaded. | 23 January 2020 13:18 CET | Updated version of record | https://www.mdpi.com/2227-7099/8/1/7/pdf |
| article xml uploaded. | 23 January 2020 13:18 CET | Update | https://www.mdpi.com/2227-7099/8/1/7/xml |
| article xml file uploaded | 23 January 2020 13:18 CET | Update | - |
| article html file updated | 23 January 2020 12:48 CET | Original file | - |
| article pdf uploaded. | 23 January 2020 12:46 CET | Updated version of record | https://www.mdpi.com/2227-7099/8/1/7/pdf-vor |
| article xml uploaded. | 23 January 2020 12:46 CET | Update | - |
| article xml file uploaded | 23 January 2020 12:46 CET | Update | - |
| article pdf uploaded. | 20 January 2020 13:27 CET | Updated version of record | https://www.mdpi.com/2227-7099/8/1/7/pdf-vor |
| article xml file uploaded | 20 January 2020 13:27 CET | Update | - |
| article pdf uploaded. | 20 January 2020 13:22 CET | Updated version of record | https://www.mdpi.com/2227-7099/8/1/7/pdf-vor |
| article xml file uploaded | 20 January 2020 13:22 CET | Update | - |
| article pdf uploaded. | 20 January 2020 13:22 CET | Version of Record | https://www.mdpi.com/2227-7099/8/1/7/pdf-vor |
| article xml file uploaded | 20 January 2020 13:22 CET | Original file | - |
