| article html file updated | 7 February 2020 18:04 CET | Update | https://www.mdpi.com/2079-4991/6/11/215 |
| article html file updated | 4 May 2019 22:25 CEST | Update | - |
| article html file updated | 2 December 2016 05:42 CET | Update | - |
| article html file updated | 16 November 2016 09:15 CET | Original file | - |
| article xml uploaded. | 16 November 2016 09:13 CET | Original file | https://www.mdpi.com/2079-4991/6/11/215/xml |
| article pdf uploaded. | 16 November 2016 09:13 CET | Version of Record | https://www.mdpi.com/2079-4991/6/11/215/pdf |
