| article html file updated | 7 February 2020 11:59 CET | Update | https://www.mdpi.com/2071-1050/8/7/680 |
| article html file updated | 5 May 2019 09:38 CEST | Update | - |
| article html file updated | 27 March 2019 10:50 CET | Update | - |
| article html file updated | 29 July 2016 12:59 CEST | Update | - |
| article html file updated | 20 July 2016 14:08 CEST | Original file | - |
| article xml uploaded. | 20 July 2016 14:06 CEST | Original file | https://www.mdpi.com/2071-1050/8/7/680/xml |
| article pdf uploaded. | 20 July 2016 14:06 CEST | Version of Record | https://www.mdpi.com/2071-1050/8/7/680/pdf |
