| article html file updated | 8 February 2020 19:23 CET | Update | https://www.mdpi.com/2071-1050/9/11/1938 |
| article html file updated | 27 September 2019 23:50 CEST | Update | - |
| article html file updated | 2 May 2019 19:09 CEST | Update | - |
| article html file updated | 30 November 2017 13:46 CET | Update | - |
| article html file updated | 28 October 2017 05:20 CEST | Original file | - |
| article xml uploaded. | 28 October 2017 05:19 CEST | Original file | https://www.mdpi.com/2071-1050/9/11/1938/xml |
| article pdf uploaded. | 28 October 2017 05:19 CEST | Updated version of record | https://www.mdpi.com/2071-1050/9/11/1938/pdf |
| article pdf uploaded. | 25 October 2017 10:34 CEST | Version of Record | https://www.mdpi.com/2071-1050/9/11/1938/pdf-vor |
