| article html file updated | 9 February 2020 07:08 CET | Update | https://www.mdpi.com/1996-1944/11/2/309 |
| article html file updated | 1 May 2019 17:23 CEST | Update | - |
| article html file updated | 17 April 2019 16:45 CEST | Update | - |
| article html file updated | 29 March 2019 00:22 CET | Update | - |
| article html file updated | 14 March 2018 16:13 CET | Update | - |
| article html file updated | 24 February 2018 04:09 CET | Original file | - |
| article xml uploaded. | 24 February 2018 04:07 CET | Update | https://www.mdpi.com/1996-1944/11/2/309/xml |
| article xml uploaded. | 24 February 2018 04:07 CET | Original file | - |
| article pdf uploaded. | 24 February 2018 04:07 CET | Updated version of record | https://www.mdpi.com/1996-1944/11/2/309/pdf |
| article pdf uploaded. | 20 February 2018 12:44 CET | Version of Record | https://www.mdpi.com/1996-1944/11/2/309/pdf-vor |
