| article html file updated | 7 February 2020 22:25 CET | Update | https://www.mdpi.com/2071-1050/9/2/192 |
| article html file updated | 23 September 2019 02:37 CEST | Update | - |
| article html file updated | 4 May 2019 13:12 CEST | Update | - |
| article html file updated | 1 March 2017 10:26 CET | Update | - |
| article html file updated | 4 February 2017 11:44 CET | Original file | - |
| article xml uploaded. | 4 February 2017 11:43 CET | Original file | https://www.mdpi.com/2071-1050/9/2/192/xml |
| article pdf uploaded. | 4 February 2017 11:42 CET | Updated version of record | https://www.mdpi.com/2071-1050/9/2/192/pdf |
| article pdf uploaded. | 28 January 2017 10:00 CET | Version of Record | https://www.mdpi.com/2071-1050/9/2/192/pdf-vor |
