| article html file updated | 9 February 2020 11:15 CET | Update | https://www.mdpi.com/1996-1944/11/4/491 |
| article html file updated | 1 October 2019 23:23 CEST | Update | - |
| article html file updated | 1 May 2019 08:45 CEST | Update | - |
| article html file updated | 17 April 2019 08:40 CEST | Update | - |
| article html file updated | 29 March 2019 09:47 CET | Update | - |
| article html file updated | 2 May 2018 13:44 CEST | Update | - |
| article html file updated | 26 March 2018 08:31 CEST | Original file | - |
| article xml uploaded. | 26 March 2018 08:29 CEST | Update | https://www.mdpi.com/1996-1944/11/4/491/xml |
| article pdf uploaded. | 26 March 2018 08:29 CEST | Version of Record | https://www.mdpi.com/1996-1944/11/4/491/pdf |
