| article html file updated | 7 February 2020 09:43 CET | Update | https://www.mdpi.com/1996-1944/9/6/445 |
| article html file updated | 5 May 2019 13:48 CEST | Update | N/A |
| article html file updated | 27 March 2019 06:37 CET | Update | N/A |
| article html file updated | 28 June 2016 12:17 CEST | Update | N/A |
| article html file updated | 3 June 2016 10:38 CEST | Original file | N/A |
| article xml uploaded. | 3 June 2016 10:36 CEST | Original file | https://www.mdpi.com/1996-1944/9/6/445/xml |
| article pdf uploaded. | 3 June 2016 10:36 CEST | Version of Record | https://www.mdpi.com/1996-1944/9/6/445/pdf |
