| article html file updated | 8 February 2020 09:52 CET | Update | https://www.mdpi.com/2072-6643/9/7/687 |
| article html file updated | 25 September 2019 16:57 CEST | Update | - |
| article html file updated | 3 May 2019 14:29 CEST | Update | - |
| article html file updated | 2 August 2017 04:05 CEST | Update | - |
| article html file updated | 2 July 2017 09:48 CEST | Original file | - |
| article xml uploaded. | 2 July 2017 09:47 CEST | Update | https://www.mdpi.com/2072-6643/9/7/687/xml |
| article pdf uploaded. | 2 July 2017 09:47 CEST | Version of Record | https://www.mdpi.com/2072-6643/9/7/687/pdf |
