| article html file updated | 7 February 2020 11:14 CET | Update | https://www.mdpi.com/2071-1050/8/7/631 |
| article html file updated | 5 May 2019 10:59 CEST | Update | - |
| article html file updated | 27 March 2019 09:24 CET | Update | - |
| article html file updated | 29 July 2016 12:53 CEST | Update | - |
| article html file updated | 5 July 2016 11:05 CEST | Original file | - |
| article xml uploaded. | 5 July 2016 11:04 CEST | Original file | https://www.mdpi.com/2071-1050/8/7/631/xml |
| article pdf uploaded. | 5 July 2016 11:04 CEST | Version of Record | https://www.mdpi.com/2071-1050/8/7/631/pdf |
