| article html file updated | 8 February 2020 09:01 CET | Update | https://www.mdpi.com/2072-6643/9/7/646 |
| article html file updated | 25 September 2019 12:19 CEST | Update | - |
| article html file updated | 3 May 2019 16:03 CEST | Update | - |
| article html file updated | 2 August 2017 04:02 CEST | Update | - |
| article html file updated | 22 June 2017 15:50 CEST | Original file | - |
| article xml uploaded. | 22 June 2017 15:49 CEST | Update | https://www.mdpi.com/2072-6643/9/7/646/xml |
| article pdf uploaded. | 22 June 2017 15:49 CEST | Version of Record | https://www.mdpi.com/2072-6643/9/7/646/pdf |
