| article html file updated | 8 February 2020 14:34 CET | Update | https://www.mdpi.com/2079-4991/7/9/239 |
| article html file updated | 26 September 2019 18:33 CEST | Update | - |
| article html file updated | 3 May 2019 04:59 CEST | Update | - |
| article html file updated | 30 September 2017 13:06 CEST | Update | - |
| article html file updated | 26 August 2017 09:25 CEST | Original file | - |
| article xml uploaded. | 26 August 2017 09:24 CEST | Update | https://www.mdpi.com/2079-4991/7/9/239/xml |
| article xml uploaded. | 26 August 2017 09:24 CEST | Original file | - |
| article pdf uploaded. | 26 August 2017 09:24 CEST | Version of Record | https://www.mdpi.com/2079-4991/7/9/239/pdf |
