| article html file updated | 7 February 2020 14:29 CET | Update | https://www.mdpi.com/2072-6643/8/9/537 |
| article html file updated | 22 September 2019 00:23 CEST | Update | - |
| article html file updated | 5 May 2019 04:59 CEST | Update | - |
| article html file updated | 27 September 2016 11:33 CEST | Update | - |
| article html file updated | 6 September 2016 10:28 CEST | Original file | - |
| article xml uploaded. | 6 September 2016 10:27 CEST | Original file | https://www.mdpi.com/2072-6643/8/9/537/xml |
| article pdf uploaded. | 6 September 2016 10:27 CEST | Version of Record | https://www.mdpi.com/2072-6643/8/9/537/pdf |
