| article html file updated | 8 February 2020 04:34 CET | Update | https://www.mdpi.com/2071-1050/9/5/688 |
| article html file updated | 24 September 2019 13:11 CEST | Update | - |
| article html file updated | 4 May 2019 00:25 CEST | Update | - |
| article html file updated | 31 May 2017 10:25 CEST | Update | - |
| article html file updated | 27 April 2017 15:32 CEST | Original file | - |
| article xml uploaded. | 27 April 2017 15:31 CEST | Original file | https://www.mdpi.com/2071-1050/9/5/688/xml |
| article pdf uploaded. | 27 April 2017 15:31 CEST | Version of Record | https://www.mdpi.com/2071-1050/9/5/688/pdf |
