| article html file updated | 8 February 2020 03:21 CET | Update | https://www.mdpi.com/1996-1944/10/4/400 |
| article html file updated | 24 September 2019 06:29 CEST | Update | - |
| article html file updated | 4 May 2019 02:39 CEST | Update | - |
| article html file updated | 28 April 2017 09:20 CEST | Update | - |
| article html file updated | 12 April 2017 11:18 CEST | Original file | - |
| article xml uploaded. | 12 April 2017 11:17 CEST | Original file | https://www.mdpi.com/1996-1944/10/4/400/xml |
| article pdf uploaded. | 12 April 2017 11:17 CEST | Updated version of record | https://www.mdpi.com/1996-1944/10/4/400/pdf |
| article pdf uploaded. | 11 April 2017 12:32 CEST | Version of Record | https://www.mdpi.com/1996-1944/10/4/400/pdf-vor |
