| article html file updated | 7 February 2020 19:48 CET | Update | https://www.mdpi.com/1996-1073/9/12/1071 |
| article html file updated | 22 September 2019 12:28 CEST | Update | - |
| article html file updated | 4 May 2019 18:50 CEST | Update | - |
| article html file updated | 28 December 2016 09:07 CET | Update | - |
| article html file updated | 16 December 2016 11:26 CET | Original file | - |
| article xml uploaded. | 16 December 2016 11:25 CET | Update | https://www.mdpi.com/1996-1073/9/12/1071/xml |
| article xml uploaded. | 16 December 2016 11:25 CET | Original file | - |
| article pdf uploaded. | 16 December 2016 11:25 CET | Version of Record | https://www.mdpi.com/1996-1073/9/12/1071/pdf |
