| article html file updated | 9 February 2020 12:23 CET | Update | https://www.mdpi.com/1996-1944/11/4/549 |
| article html file updated | 2 October 2019 06:03 CEST | Update | - |
| article html file updated | 1 May 2019 06:23 CEST | Update | - |
| article html file updated | 17 April 2019 06:28 CEST | Update | - |
| article html file updated | 29 March 2019 12:23 CET | Update | - |
| article html file updated | 2 May 2018 14:04 CEST | Update | - |
| article html file updated | 3 April 2018 17:28 CEST | Original file | - |
| article xml uploaded. | 3 April 2018 17:26 CEST | Update | https://www.mdpi.com/1996-1944/11/4/549/xml |
| article pdf uploaded. | 3 April 2018 17:26 CEST | Version of Record | https://www.mdpi.com/1996-1944/11/4/549/pdf |
