| article html file updated | 7 February 2020 12:09 CET | Update | https://www.mdpi.com/1996-1944/9/7/609 |
| article html file updated | 5 May 2019 09:19 CEST | Update | N/A |
| article html file updated | 27 March 2019 11:09 CET | Update | N/A |
| article html file updated | 29 July 2016 11:16 CEST | Update | N/A |
| article html file updated | 22 July 2016 11:01 CEST | Original file | N/A |
| article xml uploaded. | 22 July 2016 11:00 CEST | Original file | https://www.mdpi.com/1996-1944/9/7/609/xml |
| article pdf uploaded. | 22 July 2016 11:00 CEST | Version of Record | https://www.mdpi.com/1996-1944/9/7/609/pdf |
