| article html file updated | 7 February 2020 11:52 CET | Update | https://www.mdpi.com/2071-1050/8/7/688 |
| article html file updated | 5 May 2019 09:51 CEST | Update | - |
| article html file updated | 27 March 2019 10:36 CET | Update | - |
| article html file updated | 29 July 2016 12:59 CEST | Update | - |
| article html file updated | 18 July 2016 11:29 CEST | Original file | - |
| article xml uploaded. | 18 July 2016 11:28 CEST | Original file | https://www.mdpi.com/2071-1050/8/7/688/xml |
| article pdf uploaded. | 18 July 2016 11:28 CEST | Version of Record | https://www.mdpi.com/2071-1050/8/7/688/pdf |
