| article html file updated | 7 February 2020 11:09 CET | Update | https://www.mdpi.com/1996-1944/9/7/540 |
| article html file updated | 5 May 2019 11:08 CEST | Update | N/A |
| article html file updated | 27 March 2019 09:16 CET | Update | N/A |
| article html file updated | 29 July 2016 10:39 CEST | Update | N/A |
| article html file updated | 2 July 2016 09:18 CEST | Original file | N/A |
| article xml uploaded. | 2 July 2016 09:17 CEST | Update | https://www.mdpi.com/1996-1944/9/7/540/xml |
| article pdf uploaded. | 2 July 2016 09:17 CEST | Version of Record | https://www.mdpi.com/1996-1944/9/7/540/pdf |
