| article html file updated | 7 February 2020 19:01 CET | Update | https://www.mdpi.com/1996-1944/9/12/980 |
| article html file updated | 22 September 2019 08:33 CEST | Update | - |
| article html file updated | 4 May 2019 20:29 CEST | Update | - |
| article html file updated | 28 December 2016 10:37 CET | Update | - |
| article html file updated | 2 December 2016 12:48 CET | Original file | - |
| article xml uploaded. | 2 December 2016 12:47 CET | Original file | https://www.mdpi.com/1996-1944/9/12/980/xml |
| article pdf uploaded. | 2 December 2016 12:47 CET | Version of Record | https://www.mdpi.com/1996-1944/9/12/980/pdf |
