| article html file updated | 7 February 2020 22:20 CET | Update | https://www.mdpi.com/2072-4292/9/2/109 |
| article html file updated | 23 September 2019 02:06 CEST | Update | - |
| article html file updated | 4 May 2019 13:23 CEST | Update | - |
| article html file updated | 2 March 2017 08:38 CET | Update | - |
| article html file updated | 6 February 2017 07:08 CET | Original file | - |
| article xml uploaded. | 6 February 2017 07:07 CET | Original file | https://www.mdpi.com/2072-4292/9/2/109/xml |
| article pdf uploaded. | 6 February 2017 07:07 CET | Updated version of record | https://www.mdpi.com/2072-4292/9/2/109/pdf |
| article pdf uploaded. | 27 January 2017 10:02 CET | Version of Record | https://www.mdpi.com/2072-4292/9/2/109/pdf-vor |
