| article html file updated | 7 February 2020 19:25 CET | Update | https://www.mdpi.com/1996-1073/9/12/1042 |
| article html file updated | 22 September 2019 10:24 CEST | Update | - |
| article html file updated | 4 May 2019 19:39 CEST | Update | - |
| article html file updated | 28 December 2016 09:02 CET | Update | - |
| article html file updated | 10 December 2016 09:00 CET | Original file | - |
| article xml uploaded. | 10 December 2016 08:58 CET | Original file | https://www.mdpi.com/1996-1073/9/12/1042/xml |
| article pdf uploaded. | 10 December 2016 08:58 CET | Version of Record | https://www.mdpi.com/1996-1073/9/12/1042/pdf |
