| article html file updated | 7 February 2020 19:49 CET | Update | https://www.mdpi.com/1996-1944/9/12/1020 |
| article html file updated | 22 September 2019 12:37 CEST | Update | - |
| article html file updated | 4 May 2019 18:46 CEST | Update | - |
| article html file updated | 28 December 2016 10:52 CET | Update | - |
| article html file updated | 17 December 2016 04:44 CET | Original file | - |
| article xml uploaded. | 17 December 2016 04:43 CET | Update | https://www.mdpi.com/1996-1944/9/12/1020/xml |
| article xml uploaded. | 17 December 2016 04:42 CET | Original file | - |
| article pdf uploaded. | 17 December 2016 04:42 CET | Version of Record | https://www.mdpi.com/1996-1944/9/12/1020/pdf |
