| article html file updated | 8 February 2020 07:05 CET | Update | https://www.mdpi.com/2072-6643/9/6/558 |
| article html file updated | 25 September 2019 02:18 CEST | Update | - |
| article html file updated | 3 May 2019 19:43 CEST | Update | - |
| article html file updated | 29 June 2017 11:42 CEST | Update | - |
| article html file updated | 1 June 2017 05:20 CEST | Original file | - |
| article xml uploaded. | 1 June 2017 05:19 CEST | Original file | https://www.mdpi.com/2072-6643/9/6/558/xml |
| article pdf uploaded. | 1 June 2017 05:19 CEST | Updated version of record | https://www.mdpi.com/2072-6643/9/6/558/pdf |
| article pdf uploaded. | 31 May 2017 11:39 CEST | Version of Record | https://www.mdpi.com/2072-6643/9/6/558/pdf-vor |
