| article html file updated | 7 February 2020 22:09 CET | Update | https://www.mdpi.com/2071-1050/9/2/166 |
| article html file updated | 23 September 2019 01:08 CEST | Update | - |
| article html file updated | 4 May 2019 13:44 CEST | Update | - |
| article html file updated | 1 March 2017 10:21 CET | Update | - |
| article html file updated | 24 January 2017 12:42 CET | Original file | - |
| article xml uploaded. | 24 January 2017 12:41 CET | Original file | https://www.mdpi.com/2071-1050/9/2/166/xml |
| article pdf uploaded. | 24 January 2017 12:41 CET | Version of Record | https://www.mdpi.com/2071-1050/9/2/166/pdf |
