| article html file updated | 8 February 2020 08:43 CET | Update | https://www.mdpi.com/2072-6643/9/6/630 |
| article html file updated | 25 September 2019 10:40 CEST | Update | - |
| article html file updated | 3 May 2019 16:38 CEST | Update | - |
| article html file updated | 29 June 2017 11:48 CEST | Update | - |
| article html file updated | 19 June 2017 15:31 CEST | Original file | - |
| article xml uploaded. | 19 June 2017 15:30 CEST | Original file | https://www.mdpi.com/2072-6643/9/6/630/xml |
| article pdf uploaded. | 19 June 2017 15:30 CEST | Version of Record | https://www.mdpi.com/2072-6643/9/6/630/pdf |
