| article html file updated | 8 February 2020 21:48 CET | Update | https://www.mdpi.com/2073-8994/9/11/284 |
| article html file updated | 28 September 2019 15:32 CEST | Update | - |
| article html file updated | 2 May 2019 13:36 CEST | Update | - |
| article html file updated | 18 April 2019 11:16 CEST | Update | - |
| article html file updated | 30 November 2017 08:28 CET | Update | - |
| article html file updated | 22 November 2017 09:36 CET | Original file | - |
| article xml uploaded. | 22 November 2017 09:35 CET | Original file | https://www.mdpi.com/2073-8994/9/11/284/xml |
| article pdf uploaded. | 22 November 2017 09:35 CET | Updated version of record | https://www.mdpi.com/2073-8994/9/11/284/pdf |
| article pdf uploaded. | 21 November 2017 14:27 CET | Version of Record | https://www.mdpi.com/2073-8994/9/11/284/pdf-vor |
