| article html file updated | 8 February 2020 06:53 CET | Update | https://www.mdpi.com/2072-4292/9/6/535 |
| article html file updated | 25 September 2019 01:17 CEST | Update | - |
| article html file updated | 3 May 2019 20:04 CEST | Update | - |
| article html file updated | 30 June 2017 09:31 CEST | Update | - |
| article html file updated | 27 May 2017 12:06 CEST | Original file | - |
| article pdf uploaded. | 27 May 2017 12:05 CEST | Version of Record | https://www.mdpi.com/2072-4292/9/6/535/pdf |
| article xml uploaded. | 27 May 2017 12:04 CEST | Original file | https://www.mdpi.com/2072-4292/9/6/535/xml |
