| article html file updated | 9 February 2020 11:53 CET | Update | https://www.mdpi.com/2079-4991/8/4/208 |
| article html file updated | 2 October 2019 03:09 CEST | Update | - |
| article html file updated | 1 May 2019 07:23 CEST | Update | - |
| article html file updated | 17 April 2019 07:23 CEST | Update | - |
| article html file updated | 29 March 2019 11:15 CET | Update | - |
| article html file updated | 1 May 2018 12:25 CEST | Update | - |
| article html file updated | 30 March 2018 09:09 CEST | Original file | - |
| article xml uploaded. | 30 March 2018 09:07 CEST | Update | https://www.mdpi.com/2079-4991/8/4/208/xml |
| article pdf uploaded. | 30 March 2018 09:07 CEST | Version of Record | https://www.mdpi.com/2079-4991/8/4/208/pdf |
