| article html file updated | 8 February 2020 08:08 CET | Update | https://www.mdpi.com/2071-1050/9/6/1014 |
| article html file updated | 3 May 2019 17:45 CEST | Update | - |
| article html file updated | 28 June 2017 14:47 CEST | Update | - |
| article html file updated | 12 June 2017 15:27 CEST | Original file | - |
| article xml uploaded. | 12 June 2017 15:26 CEST | Original file | https://www.mdpi.com/2071-1050/9/6/1014/xml |
| article pdf uploaded. | 12 June 2017 15:26 CEST | Version of Record | https://www.mdpi.com/2071-1050/9/6/1014/pdf |
