| article html file updated | 8 February 2020 06:54 CET | Update | https://www.mdpi.com/2072-4292/9/6/537 |
| article html file updated | 25 September 2019 01:20 CEST | Update | - |
| article html file updated | 3 May 2019 20:03 CEST | Update | - |
| article html file updated | 30 June 2017 09:31 CEST | Update | - |
| article html file updated | 27 May 2017 13:34 CEST | Original file | - |
| article xml uploaded. | 27 May 2017 13:33 CEST | Update | https://www.mdpi.com/2072-4292/9/6/537/xml |
| article pdf uploaded. | 27 May 2017 13:33 CEST | Updated version of record | https://www.mdpi.com/2072-4292/9/6/537/pdf |
