| article html file updated | 7 February 2020 22:48 CET | Update | https://www.mdpi.com/2072-4292/9/2/137 |
| article html file updated | 23 September 2019 04:39 CEST | Update | - |
| article html file updated | 4 May 2019 12:26 CEST | Update | - |
| article html file updated | 2 March 2017 08:47 CET | Update | - |
| article html file updated | 7 February 2017 11:49 CET | Original file | - |
| article xml uploaded. | 7 February 2017 11:47 CET | Original file | https://www.mdpi.com/2072-4292/9/2/137/xml |
| article pdf uploaded. | 7 February 2017 11:47 CET | Version of Record | https://www.mdpi.com/2072-4292/9/2/137/pdf |
