| article html file updated | 8 February 2020 20:44 CET | Update | https://www.mdpi.com/2073-8994/9/11/270 |
| article html file updated | 28 September 2019 08:27 CEST | Update | - |
| article html file updated | 2 May 2019 16:02 CEST | Update | - |
| article html file updated | 30 November 2017 08:26 CET | Update | - |
| article html file updated | 13 November 2017 13:30 CET | Original file | - |
| article xml uploaded. | 13 November 2017 13:29 CET | Original file | https://www.mdpi.com/2073-8994/9/11/270/xml |
| article pdf uploaded. | 13 November 2017 13:29 CET | Updated version of record | https://www.mdpi.com/2073-8994/9/11/270/pdf |
| article pdf uploaded. | 9 November 2017 11:47 CET | Version of Record | https://www.mdpi.com/2073-8994/9/11/270/pdf-vor |
