| article html file updated | 7 February 2020 23:32 CET | Update | https://www.mdpi.com/2071-1050/9/2/283 |
| article html file updated | 23 September 2019 08:45 CEST | Update | - |
| article html file updated | 4 May 2019 10:58 CEST | Update | - |
| article html file updated | 1 March 2017 10:40 CET | Update | - |
| article html file updated | 16 February 2017 10:56 CET | Original file | - |
| article xml uploaded. | 16 February 2017 10:55 CET | Original file | https://www.mdpi.com/2071-1050/9/2/283/xml |
| article pdf uploaded. | 16 February 2017 10:55 CET | Version of Record | https://www.mdpi.com/2071-1050/9/2/283/pdf |
