| article html file updated | 8 February 2020 04:27 CET | Update | https://www.mdpi.com/2071-1050/9/5/687 |
| article html file updated | 24 September 2019 12:39 CEST | Update | - |
| article html file updated | 4 May 2019 00:37 CEST | Update | - |
| article html file updated | 31 May 2017 10:25 CEST | Update | - |
| article html file updated | 26 April 2017 14:07 CEST | Original file | - |
| article xml uploaded. | 26 April 2017 14:06 CEST | Original file | https://www.mdpi.com/2071-1050/9/5/687/xml |
| article pdf uploaded. | 26 April 2017 14:06 CEST | Version of Record | https://www.mdpi.com/2071-1050/9/5/687/pdf |
