| article html file updated | 8 February 2020 08:52 CET | Update | https://www.mdpi.com/2072-4292/9/6/638 |
| article html file updated | 25 September 2019 11:30 CEST | Update | - |
| article html file updated | 3 May 2019 16:20 CEST | Update | - |
| article html file updated | 30 June 2017 10:02 CEST | Update | - |
| article pdf uploaded. | 22 June 2017 04:46 CEST | Updated version of record | https://www.mdpi.com/2072-4292/9/6/638/pdf |
| article html file updated | 22 June 2017 04:40 CEST | Original file | - |
| article xml uploaded. | 22 June 2017 04:39 CEST | Update | https://www.mdpi.com/2072-4292/9/6/638/xml |
