| article html file updated | 7 February 2020 17:02 CET | Update | https://www.mdpi.com/1996-1944/9/11/872 |
| article html file updated | 5 May 2019 00:21 CEST | Update | N/A |
| article html file updated | 30 November 2016 05:21 CET | Update | N/A |
| article html file updated | 26 October 2016 13:03 CEST | Original file | N/A |
| article xml uploaded. | 26 October 2016 13:01 CEST | Update | https://www.mdpi.com/1996-1944/9/11/872/xml |
| article xml uploaded. | 26 October 2016 13:01 CEST | Original file | N/A |
| article pdf uploaded. | 26 October 2016 13:01 CEST | Version of Record | https://www.mdpi.com/1996-1944/9/11/872/pdf |
