| article html file updated | 8 February 2020 07:21 CET | Update | https://www.mdpi.com/2072-4292/9/6/554 |
| article html file updated | 3 May 2019 19:13 CEST | Update | - |
| article html file updated | 30 June 2017 09:36 CEST | Update | - |
| article html file updated | 5 June 2017 12:24 CEST | Original file | - |
| article xml uploaded. | 5 June 2017 12:23 CEST | Update | https://www.mdpi.com/2072-4292/9/6/554/xml |
| article pdf uploaded. | 5 June 2017 12:23 CEST | Updated version of record | https://www.mdpi.com/2072-4292/9/6/554/pdf |
| article pdf uploaded. | 2 June 2017 13:38 CEST | Version of Record | https://www.mdpi.com/2072-4292/9/6/554/pdf-vor |
