| article html file updated | 21 April 2020 04:02 CEST | Update | https://www.mdpi.com/2075-1729/10/1/4 |
| article html file updated | 15 February 2020 03:59 CET | Update | - |
| article html file updated | 17 January 2020 17:57 CET | Update | - |
| article html file updated | 17 January 2020 17:56 CET | Original file | - |
| article xml uploaded. | 17 January 2020 17:56 CET | Update | https://www.mdpi.com/2075-1729/10/1/4/xml |
| article pdf uploaded. | 17 January 2020 17:56 CET | Updated version of record | https://www.mdpi.com/2075-1729/10/1/4/pdf |
| article pdf uploaded. | 17 January 2020 17:54 CET | Version of Record | - |
| article xml file uploaded | 17 January 2020 17:54 CET | Original file | - |
