| article html file updated | 7 February 2020 17:05 CET | Update | https://www.mdpi.com/1996-1073/9/11/881 |
| article html file updated | 5 May 2019 00:16 CEST | Update | - |
| article html file updated | 30 November 2016 05:23 CET | Update | - |
| article html file updated | 28 October 2016 05:30 CEST | Update | - |
| article xml uploaded. | 28 October 2016 05:29 CEST | Update | https://www.mdpi.com/1996-1073/9/11/881/xml |
| article pdf uploaded. | 28 October 2016 05:29 CEST | Updated version of record | https://www.mdpi.com/1996-1073/9/11/881/pdf |
| article html file updated | 27 October 2016 13:13 CEST | Original file | - |
| article xml uploaded. | 27 October 2016 13:11 CEST | Original file | - |
| article pdf uploaded. | 27 October 2016 13:11 CEST | Version of Record | https://www.mdpi.com/1996-1073/9/11/881/pdf-vor |
