| article html file updated | 7 February 2020 19:30 CET | Update | https://www.mdpi.com/1996-1073/9/12/1044 |
| article html file updated | 22 September 2019 10:50 CEST | Update | N/A |
| article html file updated | 4 May 2019 19:30 CEST | Update | N/A |
| article html file updated | 28 December 2016 09:02 CET | Update | N/A |
| article html file updated | 12 December 2016 16:52 CET | Original file | N/A |
| article xml uploaded. | 12 December 2016 16:51 CET | Original file | https://www.mdpi.com/1996-1073/9/12/1044/xml |
| article pdf uploaded. | 12 December 2016 16:51 CET | Version of Record | https://www.mdpi.com/1996-1073/9/12/1044/pdf |
