| article html file updated | 8 February 2020 08:09 CET | Update | https://www.mdpi.com/2071-1050/9/6/1015 |
| article html file updated | 25 September 2019 07:40 CEST | Update | - |
| article html file updated | 3 May 2019 17:43 CEST | Update | - |
| article html file updated | 28 June 2017 14:47 CEST | Update | - |
| article html file updated | 13 June 2017 14:13 CEST | Original file | - |
| article xml uploaded. | 13 June 2017 14:11 CEST | Original file | https://www.mdpi.com/2071-1050/9/6/1015/xml |
| article pdf uploaded. | 13 June 2017 14:11 CEST | Version of Record | https://www.mdpi.com/2071-1050/9/6/1015/pdf |
