| article html file updated | 18 November 2020 01:10 CET | Update | https://www.mdpi.com/2311-5629/6/1/4 |
| article html file updated | 1 April 2020 22:01 CEST | Update | - |
| article html file updated | 9 March 2020 12:21 CET | Original file | - |
| article pdf uploaded. | 9 March 2020 12:19 CET | Updated version of record | https://www.mdpi.com/2311-5629/6/1/4/pdf |
| article xml uploaded. | 9 March 2020 12:19 CET | Update | https://www.mdpi.com/2311-5629/6/1/4/xml |
| article xml file uploaded | 9 March 2020 12:19 CET | Update | - |
| article pdf uploaded. | 20 January 2020 13:39 CET | Updated version of record | - |
| article xml file uploaded | 20 January 2020 13:39 CET | Update | - |
| article pdf uploaded. | 20 January 2020 13:39 CET | Updated version of record | - |
| article xml file uploaded | 20 January 2020 13:39 CET | Update | - |
| article pdf uploaded. | 20 January 2020 13:39 CET | Version of Record | - |
| article xml file uploaded | 20 January 2020 13:39 CET | Original file | - |
