| article html file updated | 7 February 2020 22:39 CET | Update | https://www.mdpi.com/2071-1050/9/2/210 |
| article html file updated | 23 September 2019 03:50 CEST | Update | - |
| article html file updated | 4 May 2019 12:43 CEST | Update | - |
| article html file updated | 1 March 2017 10:29 CET | Update | - |
| article html file updated | 4 February 2017 09:58 CET | Original file | - |
| article xml uploaded. | 4 February 2017 09:56 CET | Update | https://www.mdpi.com/2071-1050/9/2/210/xml |
| article xml uploaded. | 4 February 2017 09:56 CET | Original file | - |
| article pdf uploaded. | 4 February 2017 09:56 CET | Version of Record | https://www.mdpi.com/2071-1050/9/2/210/pdf |
