| article html file updated | 14 February 2020 09:49 CET | Update | https://www.mdpi.com/2079-6374/9/4/137 |
| article html file updated | 30 December 2019 10:55 CET | Update | - |
| article html file updated | 20 November 2019 07:02 CET | Update | - |
| article pdf uploaded. | 20 November 2019 07:01 CET | Updated version of record | https://www.mdpi.com/2079-6374/9/4/137/pdf |
| article xml uploaded. | 20 November 2019 07:01 CET | Update | https://www.mdpi.com/2079-6374/9/4/137/xml |
| article xml file uploaded | 20 November 2019 07:01 CET | Update | - |
| article html file updated | 15 November 2019 19:15 CET | Original file | - |
| article pdf uploaded. | 15 November 2019 09:38 CET | Updated version of record | https://www.mdpi.com/2079-6374/9/4/137/pdf-vor |
| article xml uploaded. | 15 November 2019 09:38 CET | Update | - |
| article xml file uploaded | 15 November 2019 09:38 CET | Update | - |
| article pdf uploaded. | 14 November 2019 15:05 CET | Version of Record | https://www.mdpi.com/2079-6374/9/4/137/pdf-vor |
| article xml file uploaded | 14 November 2019 15:05 CET | Original file | - |
